Platinamu chinhu chemakemikari chine chiratidzo Pt uye nhamba yeatomiki 78. Icho chakasimba, chinogadziriswa, chinogadziriswa, chisingabatsiri, chinokosha, sirivha-chena shanduko yesimbi. Zita rayo rinobva muSpanish izwi platino, zvichireva "sirivha shoma".Platinamu inhengo yeboka replatinamu yezvinhu uye boka 10 ye periodic table yezvinhu. Iine zvitanhatu zvinowanzoitika isotopes. Icho chimwe chezvinhu zvisingawanzoitiki mu Earth's crust, ine avhareji yakawanda yeanenge 5 μg / kg. Inowanikwa mune dzimwe nickel uye mhangura kana pamwe chete nedzimwe native deposits, kunyanya muSouth Africa, iyo inokonzera 80% yekugadzirwa kwenyika. Kushaikwa kwayo mu Earth's crust, mazana mashomanana chete gore negore anokosha uye anokosha anobudiswa, inokosha pre-columbian precious metal.
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