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144

Showing resources 1 to 20 of 144

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  • 45-Rhodium

    • Image
    • Text Document
    • 3D Model
    3D model of the atom Rhodium

    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)

  • Helium

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    • Text Document
    Illustration of the Helium atom comprising of 2 positively charged protons an d 2 Neutrons in the Nucleus, with two orbiting negatively charged electrons.

    Remixed from Customizable Atom Delux by roman_hegglin. Helium is a chemical element with 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: OpenStax)

  • Metals 2

    • Video
    Broken pottery with a lump of metal on the ground. Caption: we find iron reduced from the iron(III) oxide.

    Shows the combustion of magnesium, a thermite reaction to form iron, and the chemical reactions of sodium and potassium with water.

    (Source: DCMP)

  • Metals I

    • Video
    Person pouring clear liquid into 4 beakers. Caption:  Nitric acid is a very strong oxidizing agent.

    Lab experiments show how magnesium, zinc, iron, and copper react with hydrochloric and nitric acids. Also shows the displacement of two metals from salts.

    (Source: DCMP)

  • Different kinds of batteries held in a clear container. Spanish captions.

    It is important to properly dispose of metals for the safety of people and the environment. Due to potential contamination problems, environmental programs focus on the recycling, reusing, and reducing of metals.

    (Source: DCMP)

  • Diagram of a circuit showing a battery with leads on the positive and negative side and a lightbulb in the middle. Reduction. Caption: During this process, one substance must gain electrons,

    Every portable electronic device is fueled by chemistry, specifically through oxidation-reduction or redox reactions. In redox reactions, one compound gains electrons (reduction) and one compound loses them (oxidation). Chemists can set up reactions so that electrons are forced to move in a certain way to create an electrical current. Metals often play a key role in redox reactions, which are essential to all aspects of chemistry, particularly in many biochemical processes. Part of the series Chemistry: Challenges And Solutions.

    (Source: DCMP)

  • 39-Yttrium

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    3D model of the atom Yttrium

    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)

  • 55-Caesium

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    3D model of the atom Caesium

    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)

  • 72-Hafnium

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    3D model of the atom Hafnium

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

    (Source: Library Lyna)

  • Sparks flying out of a small container. Caption: to form aluminum oxide, leaving iron metal behind.

    Science lab experiments demonstrate what happens visibly and at a molecular level with the Group 1 highly reactive metals and the Group 17 highly reactive halogens from the periodic table. Experiments also illustrate the range of reactivity among metals. Video has three 5-minute segments for convenience.

    (Source: DCMP)

  • 75-Rhenium

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    3D model of the atom Rhenium

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

    (Source: Library Lyna)

  • 40-Zirconium

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    3D model of the atom Zirconium

    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)

  • 49-Indium

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    3D model of the atom Indium

    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)

  • 37-Rubidium

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    3D model of the atom Rubidium

    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)

  • 78-Platinum

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    3D model of the atom Platinum

    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)

  • 41-Niobium

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    3D model of the atom Niobium

    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)

  • 47-Silver

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    3D model of the atom Silver

    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)

  • 3-Lithium

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    3D model of the atom Lithium

    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)

  • Open flame with a piece of metal in it. Flame below the metal is blue, above the metal is orange. Ca2+. Caption: Calcium compounds show a typical orange-red coloring.

    Tests the heat zones of a Bunsen burner and shows some elements' coloration when placed in the flame. Notes that chemistry is everywhere, in both natural and man-made components.

    (Source: DCMP)

  • 38-Strontium

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    3D model of the atom Strontium

    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)

Collections

3

Showing collections 1 to 3 of 3

  • Elements

    • Image
    • Text Document
    • 3D Model

    3D models and images of the entire periodic table of elements

    A collection containing 118 resources, curated by Library Lyna

  • Chemistry

    • Video
    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    • Simulation

    A collection of Chemistry related resources

    A collection containing 67 resources, curated by Benetech

  • PhET Simulations

    • Simulation

    A collection of simulations from PhET.

    A collection containing 15 resources, curated by Charles LaPierre