Question

Gadolinium belongs of 4f series. Its atomic number is 64. Which of the following is the correct electric Configuration of gadolinium?

Accepted Answer

$\,\left[ {{\rm{Xe}}} \right]{\rm{4}}{{\rm{f}}^{\rm{7}}}{\rm{5}}{{\rm{d}}^{\rm{1}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}$

Answer

$\,\,\left[ {{\rm{Xe}}} \right]{\rm{4}}{{\rm{f}}^6}{\rm{5}}{{\rm{d}}^2}{\rm{6}}{{\rm{s}}^{\rm{2}}}$

Answer

$\,\,\left[ {{\rm{Xe}}} \right]{\rm{4}}{{\rm{f}}^8}{\rm{6}}{{\rm{d}}^{\rm{2}}}$

Answer

$\,\,\left[ {{\rm{Xe}}} \right]{\rm{4}}{{\rm{f}}^9}{\rm{5}}{{\rm{s}}^1}$

NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

More Questions from d & f- BLOCK ELEMENTS