Question

If X is the largest group in the long form of periodic table having  number of d-block elements  is A , number of Lanthanides is B and the  number of Actinides is C, then ,value of A+B-C?​

Answer 1

Answer:

2

Explanation:

Group 3 is the largest group it contains 32 elements including lanthanides and actinides

number of d block elements is 2(Scandium and Yitrium)

number of lanthanides is 15

number of actinides is 15

A+B-C=2+15-15=2

Hope it helps.

Kindly refer periodic table.