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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)
In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons and/or protons). The difference in mass between the products and reactants is manifested as the release of large amounts of energy. This difference in mass arises due to the difference in atomic "binding energy" between the atomic nuclei before and after the reaction. Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.
(Source: APH)
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.
Stream alpha particles to begin observations in Rutherford’s experiment. Note this sim does not yet have a Keyboard Shortcuts dialog.
(Source: PhET Interactive Simulations)
Part of the "Chemistry in Action" series. Numerous real-life examples of elements are exemplified in the table. Animations and graphics illustrate concepts not easily achieved through other instructional strategies. Specific patterns in the periodic table are highlighted. Introduces the following terminology: atomic structure, atomic number, atomic mass, periods, and families.
(Source: DCMP)
Smart Puppy and his friends use peanuts to understand the size of atoms. Part of the “Smart Puppy! and Friends” series.
The formation of molecular bonds is an essential part of keeping matter together. The sharing of charges between atoms helps them become more stable. Other topics covered include sharing electrons, bonding tendencies, isomers, VSEPR theory, and molecular geometry. Part of the "Chemistry" series.
Observe changes to electrostatic force as you play with the distance between charges and charge amounts at both macro and atomic scales.
Beginning with Alchemy's attempt to find the recipe for gold, scientists have strived to unearth the basic building blocks of our world. These building blocks became smaller and smaller as scientists including Isaac Newton and Albert Einstein studied the world. From elements, to the atom, to subatomic particles, the study of our natural world has led to inventions both deadly and fantastic, including X-Rays, MRIs, calculus, and the atomic bomb.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term element. Part of the Science Video Vocab Series.
Everything is made of millions of tiny particles. Animations illustrate how matter consists of different types of particles that are responsible for varying characteristics. Concepts and terminology include atom, element, chemical, and compound.
Dr. Michelle Thaller explains infrared light. Due to its longer wavelengths than those of visible light, infrared light is invisible to the human eye. However, special equipment exists that makes these wavelengths visible. Part of the "Ask an Astronomer" series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term kinetic energy. Part of the Science Video Vocab Series.
Sherlock Olmos uses his famous detective skills to solve his mysterious case of how the periodic table is structured. With a touch of humor, he investigates electrons, valences, and the physical and chemical properties of some of the elements. Part of Chemistry: Solved by Sherlock Olmos Series.
Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.
(Source: OpenStax)
Sherlock Olmos decides to dig deeper into dark corner of this great house to investigate the suspicious behavior of some chemical elements. The exchange of electrons and the characteristics of hydrogen, fluorine gas, and the noble gases are the primary subjects of his investigation. Part of Chemistry: Solved by Sherlock Olmos Series.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term translational motion. Part of the Science Video Vocab Series.
Showing collections 1 to 4 of 4
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Biology related concepts
A collection containing 59 resources, curated by Benetech