| Group | ||||
|---|---|---|---|---|
| f1 | f2 | f3 | ||
| Period | 6 |
57
La
Lanthanum
[Xe] 6s2 5d1
|
58
Ce
Cerium
[Xe] 6s2 4f1 5d1
Name origin:
Ceres, the Roman God of agriculture
Atomic weight (amu):
140.116
Specific heat capacity (J/gK):
0.192
Density (g/cm3):
6.77
Melting point (K):
1068.0
Boiling point (K):
3716.0
Electronegativity (Pauling):
1.12
Abundance (mg/kg):
66.5
|
59
Pr
Praseodymium
[Xe] 6s2 4f3
|
| 7 |
90
Th
Thorium
[Rn] 7s2 6d2
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.