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Chemistry
| Term | Definition |
|---|---|
| Atom | basic unit of a chemical element |
| Electron | a stable subatomic particle with a charge of negative electricity |
| Energy level | the fixed amount of energy that a system described by quantum mechanics |
| Isotope | each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei |
| Leptons | A subatomic particle, such as an electron, muon, or neutrino, that does not take part in the strong interaction. |
| Matter | Physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy. |
| Neutron | A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. |
| Nucleus | The central and most important group, forming the basis for its activity and growth, tant part of an object, movement. |
| Proton | A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. |
| Quark | A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. |
| Valence | The combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine |
| Chemical Formula | |
| Petrochemicals | |
| Atomic Mass |
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2020kbutler2
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