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Science Ch 11 TTK
Term | Definition |
---|---|
ion | an atom that is no longer neutral because it has lost or gained valence electrons |
polar molecule | a molecule with a slight negative charge in one area and a slight positive charge in another area |
valence electron | the outermost electron of an atom that participates in chemical bonding |
metallic bond | a bond formed when many metal atoms share their pooled valence electrons |
ionic bond | the attraction between positively and negatively charged ions in an ionic compound |
covalent bond | a chemical bond formed when two atoms share one or more pairs of valence electrons |
compound | a substance containing atoms of two or more different elements chemically bonded together |
electron dot diagram | a model that represents valence electrons in an atom as dots around the element's chemical symbol |
molecule | covalently bonded compound |