Teaching MPPSC Assistant Professor Mock Test Series 2025 Chemical Sciences Transition Elements and Inner Transition Elements
The experimental magnetic moment (3.4 BM) of a hydrated salt of Eu3+ at 300 K is significantly different from calculated value. The difference is due to (Given atomic number of Eu = 63)
1
Population of electrons at higher J level(s) via thermal excitation
2
Strong ligand field splitting of f-orbitals
3
Large spin-orbit coupling constant
4
Pairing of electrons in f-orbitals