Strontium (Sr) in the periodic table — PeriodicTable

Strontium (Sr) in the periodic tableStrontium is element 38, an alkaline earth of the s block, in group 2, period 5. Its ground-state configuration is [Kr] 5s2, and it usually shows the oxidation states 0, 2.It was discovered in 1790, by Crawford.Name origin: Strontian, a small town in Scotland. Blank rows are columns the sheet does not measure for this element.

Property

Value

Unit

Atomic weight

87.62

Da

Electronegativity

0.95

First ionisation energy

549.5

kJ/mol

Covalent radius

192

pm

Van der Waals radius

249

pm

Melting point

1050

K

Boiling point

1655

K

Density

2.64

g/cm³

Abundance

370

mg/kg

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