Strontium
Sr
Strontium
Alkali Earth Metal
Atomic number:
38
Atomic weight:
87.62
Shells:
2,8,18,8,2
Orbitals:
[Kr] 5s2
Melting point:
769°C
Boiling point:
1384°C
Covalent radius:
1.91
Å
Atomic volume:
33.7
cm³/mol
Atomic radius:
2.45
Å
Ionic radius:
1.26 (+2)
Å
Electronegativity:
0.95
Oxidation states:
1st ionization pot.:
5.6948
V
2nd ionization pot.:
11.03
V
3rd ionization pot.:
43.60
V
Specific heat:
0.30
J/gK
Heat of fusion:
8.30
kJ/mol
Heat of vapor.:
144.0
kJ/mol
Thermal conduct.:
0.353
W/cmK
Electrical conduct.:
0.0762
10^6/cm ohm
Density:
2.6
g/cm³
Valence:
2
