Sr

Element Name: Strontium
Atomic No.: 38
State (298 K): solid
Uses: flares & fireworks (red color)
Atomic Mass: 87.62 g/mol
Density: 2.54 g/cm 3
B.P.: 1657 K
F.P.: 1042 K
Electronic Configuration: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 5s 2
Isotopes: 84 Sr 83.9134 amu (0.56%) 86 Sr 85.9094 amu (9.86%) 87 Sr 86.9089 amu (7.00%)
              88 Sr 87.9056 amu (82.58%)
Electronegativity: 0.95
Radius: 192 pm (covalent)

 

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