| Group | ||||
|---|---|---|---|---|
| 1 | 2 | f1 | ||
| 5 |
38
Sr
Strontium
[Kr] 5s2
|
|||
| Period | 6 |
55
Cs
Cesium
[Xe] 6s1
|
56
Ba
Barium
[Xe] 6s2
Name origin:
the Greek 'barys', meaning heavy
Atomic weight (amu):
137.327
Specific heat capacity (J/gK):
0.204
Density (g/cm3):
3.594
Melting point (K):
1000.0
Boiling point (K):
2170.0
Electronegativity (Pauling):
0.89
Abundance (mg/kg):
425.0
|
57
La
Lanthanum
[Xe] 6s2 5d1
|
| 7 |
88
Ra
Radium
[Rn] 7s2
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.