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14 Cards in this Set
- Front
- Back
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Atom |
Smallest piece of matter that still retains the property of the element |
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Atomic Number |
The number of protons in an atom is equal to the number called |
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Average Atomic Mass |
Weighted-average mass of of the mixture of its isotopes |
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Electron |
Particles with an electrical charge of 1 -. |
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Nucleus |
Charge center of the atom |
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Protons |
Particles that do not have an electrical charge. |
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Neutrons |
Neutral particles that do not have an electrical charge. |
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Quarks |
Protons and neutrons,however, are made of smaller particles called quarks. |
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Electron cloud |
Area around the nucleus of an atom where electrons are most likely found |
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Mass number |
Sum of the number of protons and the number of neutrons in the nucleus of an atom |
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Isotopes |
Atoms of the the elements that have different numbers of neutrons are called _______ |
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Average atomic mass |
Weighted average mass of the mixture of isotopes |
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Periodic table |
Pattern being repeated periodically known as. |
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Groups |
The vertical columns in a periodic table is called ________ |
