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

Question

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

Accepted Answer

b Elements are arranged in the increasing order of their atomic masses as per Mendeleevs classification Cobalt has a higher atomic mass was placed before nickel It has an atomic mass of 589 and Nickel has 587 In the modern periodic table elements are arranged in the increasing order of their atomic numbers and hence cobalt and nickel have 2728 atomic numbers and cobalt with a lower atomic number comes before nickel

Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 5 - Chapter 5 Periodic Classification of Elements