Page 129 - Chemistry eBook

Symmetrical and Asymmetrical Molecules
H
H HN
H
H HNH
HN HN H
SYMMETRICAL MOLECULESN: MNolecules that have idenHtical parts
HNN NN
facing each other. There is an equal pull on each side/even distribution
of charge.H
NN
• Four of the same element around an element H
• Two of the same elements around an element in a straight line
•TwoHoftChesHameelement
H
O = C= O
O =C =O
NN
O= C = O
H O =C =O H ASYMMETRICAL MOLECULES: Molecules that don’t have symmetry
HCH
H
O
H
H H
H HCH H
• Three elements around another element • Water H
H
O
H
O= C =
O
HH HCH
CHH
H HN OH
H
O H
UNIT 4: BONDING © 129
H