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chapter 4

chemical bond is a force that holds two or more atoms together
valence electrons is an outermost electron of an atom that participates in chemical bonding
electrons dot diagram a model hat represents valence electrons in an atom as dots around the elements chemical symbol
covalent bond is a chemical bond formed when two atoms share one or more pairs of valence electrons
molecule is a group of atoms held together by covalent bonding that acts as an independent unit
polar moleule a molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons
chemical formula is a group of chemical symbols and numbers that represents the elements
ion is an atom that is no longer electricity neutral because it has lost or gained valence electrons
ionic the attraction between positively and negatively charged ions
metallic bond is a bond formed when many metal atoms share their pooled valence electrons
Created by: skinnkee2708