Express the given formula in term of a.
v=(a–b)gd218u
18uv/gd2 + b
18uv/gd2 - b
uv/18gd2 + b
8uv/gd2 - b
18uvgd2=(a−b)
18uvgd2+b=a
The electronic configuration of Gd2+ is (at. No. of Gd is 64)