| Group | ||||
|---|---|---|---|---|
| f11 | f12 | f13 | ||
| Period | 6 |
67
Ho
Holmium
[Xe] 6s2 4f11
|
68
Er
Erbium
[Xe] 6s2 4f12
Name origin:
Ytterby, Sweden
Atomic weight (amu):
167.259
Specific heat capacity (J/gK):
0.168
Density (g/cm3):
9.066
Melting point (K):
1802.0
Boiling point (K):
3141.0
Electronegativity (Pauling):
1.24
Abundance (mg/kg):
3.5
|
69
Tm
Thulium
[Xe] 6s2 4f13
|
| 7 |
100
Fm
Fermium
[Rn] 7s2 5f12
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.