Beryllium vs Platinum

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PropertyBe BerylliumPt Platinum
Atomic number478
SymbolBePt
NameBerylliumPlatinum
Categoryalkaline-earth-metaltransition-metal
Standard Atomic Weight9.012183 u195.084 u
Period26
Group210
Blockss
Phase at STPsolidsolid
Electron configuration[He]2s2[Xe]6s14f145d9
Oxidation states[0, 1, 2][-3, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.572.28
Electron affinity-0.52 eV2.1228 eV
Density1850 kg/m³2.146000e+4 kg/m³
Melting point1286.85 °C1768.4 °C
Boiling point2470.85 °C3824.85 °C
Discovery year17971735