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Atomic number of cobalt and nickel

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Atomic number of cobalt and nickel

Posted by Manoj Kumar 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 5 months ago

cobalt 27 and nickel 28

According to modern periodic law, elements are arranged in the order of increasing atomic numbers. The atomic number of cobalt is 27 and that of nickel is 28. So, in the modern periodic table, cobalt with lower atomic number (27) comes first and nickel with higher atomic number (28) comes later, even if their atomic masses are in the wrong order. In this way, the positions of cobalt and nickel were resolved in the modern periodic table.

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CBSE > Class 10 > Science