Nikel
Nikel iku unsur kimia metalik sajeroning tabel périodik kang duwé simbul Ni lan nomer atom 28.

Rujukan 
 Los Alamos National Laboratory – Nickel

Pranala njaba 

 WebElements.com – Ni
 Article in Nature on nickel emitted by euro coins
 London Metal Exchange
 European Nickel plc
 IARC Monograph "Nickel and Nickel compounds" 
 Tutorial - joining nickel alloys (pdf format)

Unsur kimia
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