Question

56. In group 1 of periodic table three elements X, Y and Z have atomic radi 133 pm, 95pm
and 65pm respectively giving a reason, arrange them in the increasing order of the atomic
number in the group. Z,Y, X​

Answer 1

Explanation:

In group 1 of the periodic table, three elements X, Y and Z have ionic radii 1.33 Å, 0.95 Å and 0.60 A respectively. ... Therefore, the three elements in order of increasing atomic numbers are Z< Y< X respectively.