| Group | ||||
|---|---|---|---|---|
| 8 | 9 | 10 | ||
| Period | 4 |
26
Fe
Iron
[Ar] 4s2 3d6
|
27
Co
Cobalt
[Ar] 4s2 3d7
Name origin:
the German word 'kobald', meaning goblin
Atomic weight (amu):
58.933195
Specific heat capacity (J/gK):
0.421
Density (g/cm3):
8.86
Melting point (K):
1768.0
Boiling point (K):
3200.0
Electronegativity (Pauling):
1.88
Abundance (mg/kg):
25.0
|
28
Ni
Nickel
[Ar] 4s2 3d8
|
| 5 |
45
Rh
Rhodium
[Kr] 5s2 4d7
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.