| Group | ||||
|---|---|---|---|---|
| f7 | f8 | f9 | ||
| Period | 6 |
63
Eu
Europium
[Xe] 6s2 4f7
|
64
Gd
Gadolinium
[Xe] 6s2 4f7 5d1
Name origin:
Johan Gadolin, chemist, physicist and mineralogist
Atomic weight (amu):
157.25
Specific heat capacity (J/gK):
0.236
Density (g/cm3):
7.895
Melting point (K):
1585.0
Boiling point (K):
3546.0
Electronegativity (Pauling):
1.2
Abundance (mg/kg):
6.2
|
65
Tb
Terbium
[Xe] 6s2 4f9
|
| 7 |
96
Cm
Curium
[Rn] 7s2 5f7 6d1
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.