In many compounds atoms will share electrons to

In many compounds, atoms will share electrons to enable their valence shell to become like the nearest Noble
Gas. This is normally 8 electrons (the “Octet Rule”), apart from Hydrogen. There are exceptions (see next section).
05.02 Ionic/Covalent Bond Worksheet
Valence
electrons

Chemical Bonding
Ionic Bond between a Metal and Non-Metal (M + NM)
Covalent Bond between a Non-Metal and Non-Metal (NM + NM)
Metallic Bond between a Metal and Metal (M+ M)
Determine if the elements in the following compounds are metals or non-metals. Describe the type of bonding that occurs in the
compound.
Compound Element 1
(metal or non-metal?)
Element 2
(metal or non-metal?)
Bond Type
NO
2
N = non-metal O = non-metal covalent
NaCl Na= metal Cl=non metal Ionic
SO
2
S = non metal O = non metal Covalent
PO
4
3- P=non metal O=non metal Covalent
MgBr
2
Mg=metal Br=non metal Ionic
CaO Ca=metal O = non metal Ionic
H
2
O H=non metal O = non metal Covalent
K
2
O K=metal O = non metal Ionic
Cu-Zn alloy Cu= metal Zn=metal Metallic
O
2
O = non metal O = non metal Covalent
CuCl
2
Cu= metal Ci=non metal Ionic
NO
2
-
N = non-metal O = non metal Covalent
TiO
2
Ti=metal O = non metal Ionic
HF H=non metal F =non metal Covalent
Rb
2
S Rb=metal S = non metal Ionic
Au-Ag mixture Au=metal Ag=metal Metallic
Fe
2
O
3
Fe=metal O = non metal Ionic
C
6
H
12
O
22
C=non metal H = non metal Covalent