Elements

Resources 118

• 1-Hydrogen

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  Hydrogen is the chemical element with the symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table.

  (Source: Library Lyna)

• 2-Helium

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  Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.

  (Source: Library Lyna)

• 3-Lithium

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  Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal.Under standard conditions, it is the lightest metal and the lightest solid element.

  (Source: Library Lyna)

• 4-Beryllium

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  Beryllium is a chemical element with the symbol Be and atomic number 4. It is a relatively rare element in the universe.

  (Source: Library Lyna)

• 5-Boron

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  Boron is a chemical element with the symbol B and atomic number 5.

  (Source: Library Lyna)

• 6-Carbon

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  Carbon (from Latin: carbo "coal") is a chemical element with symbol C and atomic number 6. On the periodic table, it is the first (row 2) of six elements in column (group 14), which have in common the composition of their outer electron shell. It is nonmetallic and tetravalent - making four electrons available to form covalent chemical bonds. Three isotopes occur naturally, 12C and 13C being stable while 14C is radioactive, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity.

  (Source: Library Lyna)

• 7-Nitrogen

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  Nitrogen is the chemical element with the symbol N and atomic number 7. It is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.

  (Source: Library Lyna)

• 8-Oxygen

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  Oxygen is the chemical element with the symbol O and atomic number 8. It is a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass.

  (Source: Library Lyna)

• 9-Fluorine

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  Fluorine is a chemical element with the symbol F and atomic number 9.

  (Source: Library Lyna)

• 10-Neon

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  Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions.

  (Source: Library Lyna)

• 11-Sodium

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  Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive alkali metal.

  (Source: Library Lyna)

• 12-Magnesium

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  Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid alkaline earth metals.

  (Source: Library Lyna)

• 13-Aluminium

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  Aluminium is a chemical element with the symbol Al and atomic number 13. It is a silvery-white, soft, non-magnetic and ductile metal. By mass, aluminium is the most abundant metal in the Earth's crust.

  (Source: Library Lyna)

• 14-Silicon

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  Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre.

  (Source: Library Lyna)

• 15-Phosphorus

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  Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.

  (Source: Library Lyna)

• 16-Sulfur

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  Sulfur is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.

  (Source: Library Lyna)

• 17-Chlorine

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  Chlorine is a chemical element with the symbol Cl and it has atomic number 17. It has seven electrons in the third outermost shell acting as its valence electrons.

  (Source: Library Lyna)

• 18-Argon

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  Argon is a chemical element with the symbol Ar and atomic number 18. It is a noble gas and the third-most abundant gas in the Earth's atmosphere.

  (Source: Library Lyna)

• 19-Potassium

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  Potassium is a chemical element with the symbol K and atomic number 19. It is a silvery-white metal that is soft enough to be cut with a knife with little force.

  (Source: Library Lyna)

• 20-Calcium

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  Calcium is a chemical element with the symbol Ca and atomic number 20. It is an alkaline earth metal.

  (Source: Library Lyna)

• 21-Scandium

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  Scandium is a chemical element with the symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been classified as a rare-earth element.

  (Source: Library Lyna)

• 22-Titanium

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  Titanium is a chemical element with the symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density, and high strength.

  (Source: Library Lyna)

• 23-Vanadium

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  Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal.

  (Source: Library Lyna)

• 24-Chromium

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  Chromium is a chemical element with the symbol Cr and atomic number 24. It is a steely-grey, lustrous, hard and brittle transition metal.

  (Source: Library Lyna)

• 25-Manganese

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  Manganese is a chemical element with the symbol Mn and atomic number 25. It is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.

  (Source: Library Lyna)

• 26-Iron

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  Iron is a chemical element with symbol Fe and atomic number 26. It is a metal that belongs to the first transition series

  (Source: Library Lyna)

• 27-Cobalt

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  Cobalt is a chemical element with the symbol Co and atomic number 27.

  (Source: Library Lyna)

• 28-Nickel

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  Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous transition metal with a slight golden tinge.

  (Source: Library Lyna)

• 29-Copper

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  Copper is a chemical element with the symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.

  (Source: Library Lyna)

• 30-Zinc

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  Zinc is a chemical element with the symbol Zn and atomic number 30.

  (Source: Library Lyna)

• 31-Gallium

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  Gallium is a chemical element with the symbol Ga and atomic number 31. Elemental gallium is a soft, silvery metal at standard temperature and pressure; however in its liquid state it becomes silvery white.

  (Source: Library Lyna)

• 32-Germanium

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  Germanium is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard-brittle, grayish-white metalloid.

  (Source: Library Lyna)

• 33-Arsenic

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  Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic is a metalloid and occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal.

  (Source: Library Lyna)

• 34-Selenium

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  Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal.

  (Source: Library Lyna)

• 35-Bromine

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  Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas.

  (Source: Library Lyna)

• 36-Krypton

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  Krypton is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere.

  (Source: Library Lyna)

• 37-Rubidium

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  Rubidium is the chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group.

  (Source: Library Lyna)

• 38-Strontium

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  Strontium is the chemical element with the symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly chemically reactive.

  (Source: Library Lyna)

• 39-Yttrium

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  Yttrium is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element".

  (Source: Library Lyna)

• 40-Zirconium

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  Zirconium is a chemical element with the symbol Zr and atomic number 40. It is a lustrous, grey-white, strong transition metal

  (Source: Library Lyna)

• 41-Niobium

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  Niobium, also known as columbium, is a chemical element with the symbol Nb (formerly Cb) and atomic number 41. Niobium is a light grey, crystalline, and ductile transition metal.

  (Source: Library Lyna)

• 42-Molybdenum

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  Molybdenum is a chemical element with the symbol Mo and atomic number 42.

  (Source: Library Lyna)

• 43-Technetium

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  Technetium is a chemical element with the symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive, none of which is stable other than the fully ionized state of ⁹⁷Tc.

  (Source: Library Lyna)

• 44-Ruthenium

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  Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table.

  (Source: Library Lyna)

• 45-Rhodium

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  Rhodium is a chemical element with the symbol Rh and atomic number 45. It is an ultra-rare, silvery-white, hard, corrosion-resistant, and chemically inert transition metal. It is a noble metal.

  (Source: Library Lyna)

• 46-Palladium

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  Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by the English chemist William Hyde Wollaston.

  (Source: Library Lyna)

• 47-Silver

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  Silver is a chemical element with the symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.

  (Source: Library Lyna)

• 48-Cadmium

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  Cadmium is a chemical element with the symbol Cd and atomic number 48. It is a soft, silvery-white metal.

  (Source: Library Lyna)

• 49-Indium

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  Indium is a chemical element with the symbol In and atomic number 49. Indium is the softest metal that is not an alkali metal.

  (Source: Library Lyna)

• 50-Tin

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  Tin is a chemical element with the symbol Sn and atomic number 50. Tin is a silvery metal that characteristically has a faint yellow hue.

  (Source: Library Lyna)

• 51-Antimony

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  Antimony is a chemical element with the symbol Sb and atomic number 51. A lustrous gray metalloid.

  (Source: Library Lyna)

• 52-Tellurium

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  Tellurium is a chemical element with the symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid.

  (Source: Library Lyna)

• 53-Iodine

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  Iodine is a chemical element with the symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a lustrous, purple-black non-metallic solid at standard conditions

  (Source: Library Lyna)

• 54-Xenon

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  Xenon is a chemical element with the symbol Xe and atomic number 54. It is a colorless, dense, odorless noble gas found in Earth's atmosphere in trace amounts.

  (Source: Library Lyna)

• 55-Caesium

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  Caesium has the atomic number 55 and symbols Cs. It is an alkali metal with a silvery-gold color and the only liquid metal from the group of elemental metals, which is liquid near or at room temperature.

  (Source: Library Lyna)

• 56-Barium

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  Barium is a chemical element with the symbol Ba and atomic number 56. It is a soft, silvery alkaline earth metal.

  (Source: Library Lyna)

• 57-Lanthanum

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  Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air and is soft enough to be cut with a knife.

  (Source: Library Lyna)

• 58-Cerium

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  Cerium is a chemical element with the symbol Ce and atomic number 58. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife.

  (Source: Library Lyna)

• 59-Praseodymium

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  Praseodymium is a chemical element with the symbol Pr and atomic number 59. It is traditionally considered to be one of the rare-earth metals.

  (Source: Library Lyna)

• 60-Neodymium

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  Neodymium is a chemical element with the symbol Nd and atomic number 60. It is a rare-earth element. It is a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.

  (Source: Library Lyna)

• 61-Promethium

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  Promethium is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 grams naturally occurring in Earth's crust at any given time.

  (Source: Library Lyna)

• 62-Samarium

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  Samarium is a chemical element with the symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air.

  (Source: Library Lyna)

• 63-Europium

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  Europium is a chemical element with the symbol Eu and atomic number 63.

  (Source: Library Lyna)

• 64-Gadolinium

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  Gadolinium is a chemical element with the symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is only slightly malleable and is a ductile rare-earth element.

  (Source: Library Lyna)

• 65-Terbium

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  Terbium is a chemical element with the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife.

  (Source: Library Lyna)

• 66-Dysprosium

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  Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare-earth element with a metallic silver luster.

  (Source: Library Lyna)

• 67-Holmium

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  Holmium is a chemical element with the symbol Ho and atomic number 67. It is a rare-earth element.

  (Source: Library Lyna)

• 68-Erbium

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  Erbium is a chemical element with the symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements.

  (Source: Library Lyna)

• 69-Thulium

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  Thulium is a chemical element with the symbol Tm and atomic number 69.

  (Source: Library Lyna)

• 70-Ytterbium

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  Ytterbium is a chemical element with the symbol Yb and atomic number 70.

  (Source: Library Lyna)

• 71-Lutetium

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  Lutetium is a chemical element with the symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry air, but not in moist air.

  (Source: Library Lyna)

• 72-Hafnium

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  Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal.

  (Source: Library Lyna)

• 73-Tantalum

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  Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

  (Source: Library Lyna)

• 74-Tungsten

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  Tungsten, or Wolfram, is a chemical element with the symbol W and atomic number 74. It is a rare metal found naturally on Earth almost exclusively combined with other elements in chemical compounds rather than alone.

  (Source: Library Lyna)

• 75-Rhenium

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  Rhenium is a chemical element with the symbol Re and atomic number 75. It is a silvery-gray, heavy, transition metal.

  (Source: Library Lyna)

• 76-Osmium

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  Osmium is a chemical element with the symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal.

  (Source: Library Lyna)

• 77-Iridium

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  Iridium is a chemical element with the symbol Ir and atomic number 77. It is a very hard, brittle, silvery-white transition metal.

  (Source: Library Lyna)

• 78-Platinum

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  Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.

  (Source: Library Lyna)

• 79-Gold

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  Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher atomic number elements that occur naturally. In a pure form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile trasition metal.

  (Source: Library Lyna)

• 80-Mercury

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  Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum. It is the only metallic element that is liquid at standard conditions for temperature and pressure.

  (Source: Library Lyna)

• 81-Thallium

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  Thallium is a chemical element with the symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature.

  (Source: Library Lyna)

• 82-Lead

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  Lead is a chemical element with the symbol Pb and atomic number 82. It is a heavy metal that is denser than most common materials.

  (Source: Library Lyna)

• 83-Bismuth

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  Bismuth is a chemical element with the symbol Bi and atomic number 83. It is a post-transition metal.

  (Source: Library Lyna)

• 84-Polonium

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  Polonium is a chemical element with the symbol Po and atomic number 84. It is a rare and highly radioactive metal with no stable isotopes.

  (Source: Library Lyna)

• 85-Astatine

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  Astatine is a chemical element with the symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements.

  (Source: Library Lyna)

• 86-Radon

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  Radon is a chemical element with the symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas.

  (Source: Library Lyna)

• 87-Francium

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  Francium is a chemical element with the symbol Fr and atomic number 87. It is extremely radioactive.

  (Source: Library Lyna)

• 88-Radium

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  Radium is a chemical element with the symbol Ra and atomic number 88. It is a alkaline earth metals.

  (Source: Library Lyna)

• 89-Actinium

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  Actinium is a chemical element with the symbol Ac and atomic number 89.

  (Source: Library Lyna)

• 90-Thorium

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  Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air.

  (Source: Library Lyna)

• 91-Protactinium

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  Protactinium (formerly protoactinium) is a chemical element with the symbol Pa and atomic number 91. It is a dense, silvery-gray actinide metal which readily reacts with oxygen, water vapor and inorganic acids.I

  (Source: Library Lyna)

• 92-Uranium

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  Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal.

  (Source: Library Lyna)

• 93-Neptunium

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  Neptunium is a chemical element with the symbol Np and atomic number 93. It is a radioactive actinide metal.

  (Source: Library Lyna)

• 94-Plutonium

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  Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized.

  (Source: Library Lyna)

• 95-Americium

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  Americium is a synthetic radioactive chemical element with the symbol Am and atomic number 95.

  (Source: Library Lyna)

• 96-Curium

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  Curium is a transuranic radioactive chemical element with the symbol Cm and atomic number 96.

  (Source: Library Lyna)

• 97-Berkelium

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  Berkelium is a transuranic radioactive chemical element with the symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series.

  (Source: Library Lyna)

• 98-Californium

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  Californium is a radioactive chemical element with the symbol Cf and atomic number 98. It is an actinide element.

  (Source: Library Lyna)

• 99-Einsteinium

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  Einsteinium is a synthetic element with the symbol Es and atomic number 99. As a member of the actinide series,

  (Source: Library Lyna)

• 100-Fermium

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  Fermium is a synthetic element with the symbol Fm and atomic number 100.

  (Source: Library Lyna)

• 101-Mendelevium

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  Mendelvium is a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions.

  (Source: Library Lyna)

• 102-Nobelium

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  Nobelium is a synthetic element, and thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes.

  (Source: Library Lyna)

• 103-Lawrencium

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  Lawrencium is a synthetic chemical element with the symbol Lr (formerly Lw) and atomic number 103. It is named in honor of Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements.

  (Source: Library Lyna)

• 104-Rutherfordium

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  Rutherfordium is a synthetic chemical element with the symbol Rf and atomic number 104, named after New Zealand physicist Ernest Rutherford.As a synthetic element, it is not found in nature and can only be created in a laboratory.

  (Source: Library Lyna)

• 105-Dubnium

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  Dubnium is a synthetic chemical element with the symbol Db and atomic number 105. Dubnium is highly radioactive: the most stable known isotope, dubnium-268, has a half-life of about 28 hours. This greatly limits the extent of research on dubnium.

  (Source: Library Lyna)

• 106-Seaborgium

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  Seaborgium is a synthetic chemical element with the symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg.

  (Source: Library Lyna)

• 107-Bohrium

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  Bohrium is a synthetic chemical element with the symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. As a synthetic element, it can be created in a laboratory but is not found in nature. All known isotopes of bohrium are extremely radioactive.

  (Source: Library Lyna)

• 108-Hassium

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  Hassium is a chemical element with the symbol Hs and the atomic number 108. Hassium is highly radioactive; its most stable known isotopes have half-lives of approximately ten seconds.

  (Source: Library Lyna)

• 109-Meitnerium

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  Meitnerium is a synthetic chemical element with the symbol Mt and atomic number 109. It is extremely radioactive.

  (Source: Library Lyna)

• 110-Darmstadtium

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  Darmstadtium is a chemical element with the symbol Ds and atomic number 110. It is an extremely radioactive synthetic element.

  (Source: Library Lyna)

• 111-Roentgenium

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  Roentgenium is a chemical element with the symbol Rg and atomic number 111. It is an extremely radioactive synthetic element that can be created in a laboratory but is not found in nature.

  (Source: Library Lyna)

• 112-Copernicium

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  Copernicium is a synthetic chemical element with the symbol Cn and atomic number 112. Its known isotopes are extremely radioactive, and have only been created in a laboratory.

  (Source: Library Lyna)

• 113-Nihonium

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  Nihonium is a synthetic chemical element with the symbol Nh and atomic number 113. It is extremely radioactive.

  (Source: Library Lyna)

• 114-Flerovium

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  Flerovium is a superheavy artificial chemical element with the symbol Fl and atomic number 114. It is extremely radioactive.

  (Source: Library Lyna)

• 115-Moscovium

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  Moscovium is a synthetic chemical element with the symbol Mc and atomic number 115. It was first synthesized in 2003 by a joint team of Russian and American scientists at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia.

  (Source: Library Lyna)

• 116-Livermorium

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  Livermorium is a synthetic chemical element with the symbol Lv and has an atomic number of 116. It is an extremely radioactive element that has only been created in the laboratory and has not been observed in nature.

  (Source: Library Lyna)

• 117-Tennessine

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  Tennessine is a synthetic chemical element with the symbol Ts and atomic number 117. It is the second-heaviest known element.

  (Source: Library Lyna)

• 118-Oganesson

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  Oganesson is a synthetic chemical element with the symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists.

  (Source: Library Lyna)