Term
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Definition
| smallest part of an element that retains the properties of the element |
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Term
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Definition
| negatively charged subatomic particle |
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Term
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Definition
| dense, centrally located, mass of an atom |
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Term
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Definition
| positively charged subatomic particle in the nucleus |
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Term
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Definition
| neutral subatomic particle in the nucleus |
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Term
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Definition
| number of protons in an atom |
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Term
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Definition
| same number of protons, but different numbers of neutrons |
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Definition
| sum of the protons and neutrons in the nucleus |
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Term
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Definition
| one-twelfth the mass of a carbon-12 atom |
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Term
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Definition
| weighted average mass of all isotopes of an element |
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Term
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Definition
| involves a change in the nucleus |
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Term
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Definition
| process of emitting radiation |
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Term
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Definition
| rays and particles emitted by a radioactive material |
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Term
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Definition
| the spontaneous process of radioactivity |
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Definition
| deflected toward a negatively charged plate |
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Term
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Definition
| two protons and two neutrons (2+ charge) |
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Term
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Definition
| shows atomic number and mass number of particles involved |
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Term
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Definition
| deflected toward a positively charged plate |
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Definition
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Term
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Definition
| high energy radiation with no mass or charge |
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