Set: Chem Atoms
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All 12 Terms
| | Term | Definition |
|---|---|---|
| |
electrostatic force | *weak nuclear* pulls nuclei apart; protons and neutrons |
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strong nuclear | force holds nuclei together |
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Proton | +1, in nucleus |
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Electron | -1, around nucleus in the electron cloud |
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Neutron | 0, in nucleus |
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Atomic Number | Number of protons in the nucleus, labels each element |
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Mass Number | Number of protons and neutrons in the nucleus |
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Ions | #protons-#electrons |
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cations | positive |
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anions | negative |
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Mole | "bunches of atoms" measured 6.02x10^23 |
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Molar Mass | the sum of the atomic masses of all atoms in a formula |
Description
Atomic