Group number
|
Group name
|
Location in periodic table
|
IUPAC (modern)
|
Mendeleev (I–VIII)
|
CAS (US, A-B-A)
|
old IUPAC (Europe, A-B)
|
Trivial
|
By element
|
1 |
I |
IA |
IA |
Alkali metals |
Lithium group
|
|
2 |
II |
IIA |
IIA |
Alkaline earth metals |
Beryllium group
|
|
3a |
III |
IIIB |
IIIA |
|
Scandium group
|
|
4 |
IV |
IVB |
IVA |
|
Titanium group
|
|
5 |
V |
VB |
VA |
|
Vanadium group
|
|
6 |
VI |
VIB |
VIA |
|
Chromium group
|
|
7 |
VII |
VIIB |
VIIA |
|
Manganese group
|
|
8 |
VIII |
VIIIB |
VIIIB |
|
Iron group
|
|
9 |
VIII |
VIIIB |
VIIIB |
|
Cobalt group
|
|
10 |
VIII |
VIIIB |
VIIIB |
|
Nickel group
|
|
11 |
I |
IB |
IB |
Coinage metalsc |
Copper group
|
|
12 |
II |
IIB |
IIB |
Volatile metalsc |
Zinc group
|
|
13 |
III |
IIIA |
IIIB |
Icosagensc |
Boron group
|
|
14 |
IV |
IVA |
IVB |
Crystallogensc |
Carbon group
|
|
15 |
V |
VA |
VB |
Pnictogens |
Nitrogen group
|
|
16 |
VI |
VIA |
VIB |
Chalcogens |
Oxygen group
|
|
17 |
VII |
VIIA |
VIIB |
Halogens |
Fluorine group
|
|
18 |
b |
VIIIA |
0 |
Noble gases |
Helium or Neon group
|
|