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8 Cards in this Set
- Front
- Back
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Matter
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• Anything that has mass and takes up space
• Composed of elements and compounds |
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Element
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• a substance that cannot be broken down to other substances by chemical reactions
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Compound
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• the smallest unit of matter that still retains the properties of an element
• Subatomic particles: neutron, proton, electron |
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Neutron
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• subatomic particle with no electrical charge
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Proton
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• subatomic particle with positive electrical charge
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Electron
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• subatomic particle with negative electrical charge
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Isotope
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• an atom of an element with the same number of protons but a different number of neutrons
• radioactive isotopes decay spontaneously, giving off particles and energy o used for carbon dating fossils, therapy and diagnostic practices, and tracing atoms through biological processes |
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Covalent Bond
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• The sharing of a pair of valence electrons by 2 atoms
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