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chapter 4 elements

elements and chemical bond

chemical bond a force that holds two or more atoms together
valence electron the outermost electron of an atom thaat participates in chemical bonding
electron dot diagram a model that represents valence electrons in an atom as dots around the elements chemical symbol
covalent bond a chemical bond formed when two atoms share one or more pairs of valence electrons
molecule a group of atoms held together by covalent bonding that acts as an independent unit.
polar molecule a molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons
chemical formula a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
ion A atom that is no longer electrically neutral because it is lost or gained valence electrons
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
Created by: moodycha1825