1
hydrogen
H2
2
Nitrogen
N2
3
Oxygen
O2
4
Fluorine
F2
5
Chlorine
Cl2
6
Bromine
Br2
7
giga (G)
10^9
8
mega (M)
10^6
9
kilo (k)
10^3
10
deci (d)
10^-1
11
centi (c)
10^-2
12
milli (m)
10^-3
13
micro (u)
10^-6
14
nano (n)
10^-9
15
nitrate
NO3 -
16
nitrite
NO2 -
17
phosphate
PO4 3-
18
hydrogen phosphate
(HPO4)2-
19
hydroxide
OH-
20
Sulfate
SO4 2-
21
Sulfite
SO3 2-
22
cyanide
CN-
23
carbonate
CO3 2-
24
permangante
MnO4-
25
Perchloride
ClO-4
26
chlorate
ClO3 -
27
Chlorite
ClO2 -
28
hypochlorite
ClO-