| Group | ||||
|---|---|---|---|---|
| f6 | f7 | f8 | ||
| Period | 6 |
62
Sm
Samarium
[Xe] 6s2 4f6
|
63
Eu
Europium
[Xe] 6s2 4f7
Name origin:
Europe
Atomic weight (amu):
151.964
Specific heat capacity (J/gK):
0.182
Density (g/cm3):
5.243
Melting point (K):
1099.0
Boiling point (K):
1802.0
Electronegativity (Pauling):
1.2
Abundance (mg/kg):
2.0
|
64
Gd
Gadolinium
[Xe] 6s2 4f7 5d1
|
| 7 |
95
Am
Americium
[Rn] 7s2 5f7
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.