How were the elements cobalt and nickel resolved in modern periodic table?
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The nickel and cobalt who have similar properties are arrenged in order of the atomic no
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Answer:
Explanation:
(i) Gold and Platinum occur in free state.
(ii) They are noble metals, hence they are least reactive.
(iii) They are not affected by air, water and other
natural factors.
(iv) Hence, pure gold and platinum always glitter.
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