Teaching HTET TGT Level 2 - 2024 Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
Which of the following lanthanide ions are diamagnetic?
1
\(E{u^{2 + }}\left( {Z = 63} \right)\)
2
\(S{m^{2 + }}\left( {Z = 62} \right)\)
3
\(C{e^{2 + }}\left( {Z = 58} \right)\)
4
\(L{u^{3 + }}\left( {Z = 71} \right)\)