Periodic Table of Elements showing Strontium alkaline earth metal elements


Atomic Number38
Molar Mass87.62 gmol-1
Electron Configuration[Kr]5s2
Normal Statesolid metal
Density @STP2.58 g cm-3
Melting Point777oC
Boiling Point1382oC
Stable Isotopes84Sr, 86Sr, 87Sr, 88Sr
Atomic Radius215 pm
Ionic Radius116 (2+) pm
Electronegativity (Pauling)0.95
Ionization Energy (1st)550 kJ mol-1
Ionization Energy (2nd)1064 kJ mol-1
Ionization Energy (3rd)4210 kJ mol-1
Molar Heat Capacity26.8 J K-1mol-1
Standard Molar Entropy55 J K-1mol-1
Enthalpy of Fusion9.16 kJ mol-1
Enthalpy of Vapourization138.91 kJ mol-1
[Back to Periodic table]

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