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chem unit 4

chemistry

TermDefinition
tetrahedral 109.5
if a bond is nonpolar molecule is nonpolar
vsepr theory determines shape of molecules based on electron repulsion
structural formula show number and relative positions of atoms
7 hepta
5 penta
1 mono
covalent bonds are made up of nonmetals and nonmetals
molecule formed when 3 or more atoms bond covalently
covalent bond bond formed by sharing 2 electrons
ionic bonds metal and nonmetal
trigonal planar 120
pyramidal 107.3
bent 104.5
metallic bonds bonds between atoms of a metal
delocalized electrons allows metal to conduct electricity and be malleable
if bond is polar and molecule is not symmetrical (bent or pyramidal) polar
if bond is polar and molecule is symmetrical (tetra or linear) nonpolar
polar bond electronegativity .4 - 1.7
polar bond charges exist
polar bonds electrons shared unequally
nonpolar electronegativity .4 or less
non polar bond charges dont exist
non polar bonds electrons shared equally
tripple bond 2 pi 1 sigma
double bond 1 pi 1 sigma
resonance occurs when more than 1 structural formula can be written for a molecule
8 octto
6 hexon
4 tetra
3 tri
2 di
ions w multiple charges transition metals
Created by: 10013244
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