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14 Cards in this Set
- Front
- Back
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chemical symbol |
a 1 and 2 letter abbreviation for an element |
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chemical formula |
a combination of chemical symbols and numbers used to represent a compound or indicate the number of atoms present in a molecule |
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subscript |
the number after a symbol that tells how many atoms of an element are in each molecule |
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binary compunds |
compounds made of only 2 elements |
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chemical bond |
a strong force of attraction that holds the atoms of a substance together |
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valence electrons |
the electrons in the outermost energy level of an atom, which determine how an atom bonds with other atoms |
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octet rule |
the tendency of atoms to want 8 electrons in their outer energy level |
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noble gases |
the elements in the far right column of the periodic table which have full outer energy levels and will not combine with other elements under normal conditions |
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covalent bonds |
a bond in which valence electrons are shared between atoms |
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diatomic molecule |
a molecule made of 2 atoms of the same element |
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electron dot diagram |
a model in which the chemical symbol represents the nucleus and all the filled inner energy levels of an atoms and one dot represents each valence electron |
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iln |
a charged particle |
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ionic bond |
the force of attraction between oppositely charged ions |
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ionic compounds |
compounds made of ions held together by electrostatic forces |
