Chemical Formula

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Naming Type III
Name__________________________________________________Period______
This type of naming is used when a compound starts with an element in the upper p area of the periodic table.
Chemical Name: (both elements must be in the upper p)
1. Name the first element using prefixes for 2 or more.
2. Then name the second element using prefixes for 1 or more.
Prefixes:
1-mono, 2-di, 3-tri, 4-tetra, 5-penta, 6-hexa, 7-hepta, 8-octa, 9-nona, 10-deca
S
d
f
Chemical Formula: The chemical name tells how many of each element in the chemical
formula.
Examples:
Chemical Formula
Chemical Name
dinitrogen pentachloride
P2O5
Carbon disulfide
N2Cl5
Carbon dioxide
Your Turn!
Chemical Formula
1
2
3
4
5
6
7
8
9
10
11
Carbon monoxide
BF3
Silicon tetrachloride
SiF4
Diboron trisulfide
P2Cl4
Diphosphorous tetraiodide
phosphorous pentabromide
NCl3
Dinitrogen trioxide
OF2
12
Chlorine pentafluoride
13
Cl2O6
14
Cl2O7
15
Chemical Name
phosphorous trichloride
p
p
Chemical Formula
16
BrF
17
Bromine trichloride
18
BrF5
19
BrO2
20
21
Dibromine oxide
SeF2
22
23
Seliunium hexafluoride
SeF4
24
25
Selenium dichloride
Se2Cl2
26
27
Seliunium dibromide
SeO3
28
29
Diselenium hexasulfide
Se4S4
30
31
Tetraselenium tetranitride
AsCl3
32
33
Arsenic pentachloride
As2O3
34
35
Diarsenic tritelleride
As2Se5
36
37
Chemical Name
Tetraarsenic tetrasulfide
SiI4
38
Silicon disulfide
39
Trisilicon tetranitride
40
P4S10
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