Strontium vs Platinum

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PropertySr StrontiumPt Platinum
Atomic number3878
SymbolSrPt
NameStrontiumPlatinum
Categoryalkaline-earth-metaltransition-metal
Standard Atomic Weight87.62 u195.084 u
Period56
Group210
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s2[Xe]6s14f145d9
Oxidation states[1, 2][-3, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)0.952.28
Electron affinity0.052 eV2.1228 eV
Density2640 kg/m³2.146000e+4 kg/m³
Melting point776.85 °C1768.4 °C
Boiling point1381.85 °C3824.85 °C
Discovery year17921735