chem­7­8.notebook
chem­7­8
Ionic Molecular
transfer electrons
share electrons
metal and nonmetal
two or more
nonmetals
molecular
formula
formula unit
covalent bonding
ionic bonding
Review Naming of ionic compounds :
Na O
2
sodium oxide
AgCl
silver chloride
CuCl
copper(I) chloride
FeCl3
iron(III) chloride
Cr(OH)3
chromium(III) hydroxide
Writing of ionic formulas :
lead(II) sulfide
lead(IV) sulfate
aluminum acetate
chromium(II) phosphite
(NH ) SO
4 2 4 ammonium sulfate
Covalent bonding :
­ occurs between nonmetals
­ formed by the sharing of electrons
a. H2
Dot formula : H + H ­­> H H
Structural formula : H H
Molecular formula : H2
Orbital Notation : 1s
H
H
1s
1
chem­7­8.notebook
b. O2
Orbital notation : dot notation : O + O ­­­> O O
structural formula :
Molecular formula :
b. N2
Orbital notation : dot notation : N + N ­­­> N N
structural formula :
Molecular formula :
b. H O
2
Orbital notation : dot notation : 2H + O ­­> H O H
structural formula :
Molecular formula :
2
chem­7­8.notebook
e. Carbon monoxide :( )
Orbital notation : electron dot equation ;
structural formula :
f. Carbon dioxide ( )
Orbital notation : electron dot notation :
structural formula :
Naming of covalent compounds :
a. S O
2 3 ­ disulfur trioxide
b. P S
5 8 ­ pentaphosphorus octasulfide
c. N O
2 2 ­ dinitrogen dioxide
d. CF4 ­ carbon tetrafluoride
e. N F
3 6 ­ trinitrogen hexafluoride
f. P Cl 6
9 ­ hexaphosphorus nonachloride
g. N Cl
3
6
h. P O
2 5
i. S Br
6
8
j. NI3
k. PS 3
l. C H
2 6
3