@ !
Binary Molecular Nomenclature
2. The first element keepsits name
a. The first element gets a prefix if it has a subscript in the
formula
3. The second element gets the -ide suffix (ending)
a. The second element ALWAYSgets a prefix
Compound Name
Carbon dioxide
N
Compound Formula
Carbon monoxide
Diphosphorus pentoxide
Dinitrogen monoxide
Silicon dioxide
Carbon tetrabromide
| Sulfur dioxide
Phosphorus pentabromide
Y
lodine trichloride
Nitrogentriiodide
Dinitrogentrioxide
Compound Formula
N20,
SO3
NO
NO>
As205
PCI
CCl,
H20
SeFs
à
Compound Name
1- mono
2-di
3 — tri
4 — tetra
5 — penta
6 — hexa
$
nonmetallic elements.
Prefixes
LEA
5
Rules for Binary Molecular Compounds
1. The naming system is for compounds composed of two
Part 2A: Writing Binary Molecular Formulas
Compound Name
Carbon dioxide
Compound Formula
Carbon monoxide
Diphosphorus pentoxide
Dinitrogen monoxide
Silicon dioxide
Carbon tetrabromide
Sulfur dioxide
Phosphorus pentabromide
lodine trichoride
Nitrogen triiodide
Dinitrogen trioxide
Part 2B: Naming Binary Moiecular Compounds
Compound Formula
N20O4
SO;
NO
NO;
As:0;
PCI
CCl,
H20
Ser.
Compound Name