Question

how were the positive of cobalt and nickel resolved here​

Answer 1

Answer:

This problem was resolved in the modern periodic table. According to the modern periodic law, elements are arranged in the increasing order of their atomic numbers. The atomic numbers of cobalt and nickel are 27 and 28 respectively. So, cobalt with a lower atomic number should come before nickel.

Explanation:

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Answer 2

Answer:

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