| Group | ||||
|---|---|---|---|---|
| f9 | f10 | f11 | ||
| Period | 6 |
65
Tb
Terbium
[Xe] 6s2 4f9
|
66
Dy
Dysprosium
[Xe] 6s2 4f10
Name origin:
the Greek 'dysprositos', meaning hard to get
Atomic weight (amu):
162.5
Specific heat capacity (J/gK):
0.17
Density (g/cm3):
8.55
Melting point (K):
1680.0
Boiling point (K):
2840.0
Electronegativity (Pauling):
1.22
Abundance (mg/kg):
5.2
|
67
Ho
Holmium
[Xe] 6s2 4f11
|
| 7 |
98
Cf
Californium
[Rn] 7s2 5f10
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.