platinum
  • A dense and lustrous silvery-white metallic chemical element whose atomic number is 78. It is chemically inactive, extremely corrosion resistant, malleable, ductile, and can absorb large amounts of hydrogen. It has around 35 known isotopes, of which 5 are stable. Its applications in electronics include its use in contacts, electrodes, thermocouples, and in electroplating. Its chemical symbol is Pt.
  • chemical symbol Pt

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