| Group | ||||
|---|---|---|---|---|
| f5 | f6 | f7 | ||
| 6 |
62
Sm
Samarium
[Xe] 6s2 4f6
|
|||
| Period | 7 |
93
Np
Neptunium
[Rn] 7s2 5f4 6d1
|
94
Pu
Plutonium
[Rn] 7s2 5f6
Name origin:
Pluto, a dwarf planet in the Solar System
Atomic weight (amu):
244.0
Specific heat capacity (J/gK):
Density (g/cm3):
19.84
Melting point (K):
912.5
Boiling point (K):
3501.0
Electronegativity (Pauling):
1.28
Abundance (mg/kg):
0.001
|
95
Am
Americium
[Rn] 7s2 5f7
|
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.