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11 Cards in this Set
- Front
- Back
valence electrons |
electrons that arein the highest energy level and held most loosely |
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electron dot diagram |
includes the symbol for the elementsurrounded by dots |
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chemical bond |
the force of attraction that holds two atoms together as a resultof the rearrangement of electrons between them |
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symbol |
each element is represented by this |
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atomic number |
the number of protons in the nucleus of an atom |
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period |
A row of elements across the periodictable |
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group |
Elements in the same column |
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family |
Elements in the same column |
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noble gas |
The Group 18 elements. Atoms of these elements have eight valenceelectrons, except for helium,which has two |
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halogen |
The elementsin Group 17. Have seven valence electrons |
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alkali metal |
Group 1. Have only onevalence electron |