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11 Cards in this Set
- Front
- Back
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Atom |
The smallest particle of an element that still retains the properties of the element |
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Atomic number |
Number of protons in an atom's nucleus |
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Average atomic mass |
Weighted-average mass of the mixture of an element's isotopes |
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Electron |
Particle surrounding the center of an atom that have a charge of 1 |
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Electron cloud |
Area around the nucleus of an atom where the atoms electrons are most likely to be found |
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Electron dot diagram |
Uses the symbol for an element and dots representing the number of electrons in the elements outer energy level |
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Group |
The vertical Columns in a periodic table |
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Isotope |
Atoms of the same element that have different numbers of neutrons |
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Mass number |
The sum of the number of protons and the number of neutrons in the nucleus of an atom |
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Neutron |
Neutral particles that do not have an electrical charge |
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Nucleus |
Where |
