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Unit 5 Vocab

electronegativity a measure of the attraction of an atom for electrons
ionic bond often form when metals bond with nonmetals and there is a great difference in electronegativities
non-polar covalent bond bonds that form when the difference in electronegativity between bonding atoms is low - The electrons are shared equally between the atoms.
polar covalent bond An unequal sharing of electrons. One atom with a higher electronegativity draws the bonding electrons toward itself, pulling those electrons away from the atom with the lower electronegativity value.
non reactive non metals Noble gasses
valence electrons the electrons in the outermost energy level of an atom
covalent bond form between two nonmetal atoms because the atoms have similar electronegativities
single covalent bond A bond that is composed of two shared electrons
double covalent bond A bond that is composed of four shared electrons
triple covalent bond A bond that is composed of six shared electrons
Lewis structure a representation of an atom's valence electrons using dots and the element symbol
octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell.
coordinate covalent bond A covalent bond in which both electrons come from one atom.
resonance structure represent all of the possible positions of electrons in a molecule’s chemical bonds.
Created by: ad_g



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