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40 Cards in this Set
- Front
- Back
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Element |
A substance that can't be broken down or converted to other substances by ordinary means |
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Atoms |
Smallest possible piece of an element |
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Isotope |
Atoms of the same element have different number of neutrons. Most are stable. |
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Ion |
Atom that has gained or lost an electronic |
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What makes a molecule? |
2 atoms |
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Proton |
Positively charged particles |
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Neutron |
Neutral particles |
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Electrons |
Negatively charged particles |
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Atomic number |
Number of protons in the nucleus of an atom |
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Atomic mass |
Total mass of all the protons and neutrons |
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Molecules |
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Compound |
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What are electron shells? |
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Higher |
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Polar covalent bonds |
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Nonpolar covalent bonds |
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Hydrogen bonding |
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