Question

by taking chemical properties into consideration, the atomic weight of the following element were corrected
1. Te and I
2.Ar and K
3.Co and Ni
4.Be and In​

Answer 1

Explanation:

According to the location in the periodic table, Mendeleev corrected the atomic weights of some elements such as beryllium, indium, gold and platinum. He corrected the atomic weight of beryllium from 13.5 to 9. by using formula atomic weight = equivalent weight × valency.

Answer 2

Answer:

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