Strontium

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Strontium
Sr
In situ availability:
Necessity:
Atomic number: 38
Atomic mass: 87.62
group: 2
period: 5
normal phase: Solid
series: Alkaline earth metals
density: 2.64 g/cm3
melting point: 1050K,
777°C,
1431°F
boiling point: 1655K,
1382°C,
2520°F
KCaSc
Rb ← Sr → Y
CsBaLa
Atomic radius (pm): 200
Bohr radius (pm): 219
Covalent radius (pm): 192
Van der Waals radius (pm):
ionic radius (pm): (+2) 126
1st ion potential (eV): 5.70
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6
5s2
Electrons Per Shell
2, 8, 18, 8, 2
Electronegativity: 0.95
Electron Affinity: 0.11
Oxidation states: 2
Magnetism: Paramagnetic
Crystal structure: Face centered cubic

Strontium is a Alkaline earth metal in group 2. It has a Face centered cubic crystalline structure. This element has 4 stable isotopes: 84, 86, 87, and 88.

Strontium is indistinguishable from Calcium to cells, and radioactive strontium 90 is often found in bones of humans and other animals after nuclear detonations.




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