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How were the positions of cobalt …

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How were the positions of cobalt and nickel resolved in the modern periodic table

Posted by Dean Coeparikrama 5 years, 8 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 8 months ago

Cobalt has an atomic number 27 and nickel 28. According to the modern periodic law elements are arranged in the order of increasing atomic number. So, cobalt is placed before nickel even though their atomic masses are not in increasing order.

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