Jee Main
Periodic Table And Periodicity
JEE Main 2023 (Online) 31st January Evening Shift
MCQ+4 / -12023
Which of the following elements have half-filled f-orbitals in their ground state?
(Given : atomic number $\mathrm{Sm}=62 ; \mathrm{Eu}=63 ; \mathrm{Tb}=65 ; \mathrm{Gd}=64, \mathrm{Pm}=61$ )
A. $\mathrm{Sm}$
B. Eu
C. $\mathrm{Tb}$
D. Gd
E. $\mathrm{Pm}$
Choose the correct answer from the options given below :
(Given : atomic number $\mathrm{Sm}=62 ; \mathrm{Eu}=63 ; \mathrm{Tb}=65 ; \mathrm{Gd}=64, \mathrm{Pm}=61$ )
A. $\mathrm{Sm}$
B. Eu
C. $\mathrm{Tb}$
D. Gd
E. $\mathrm{Pm}$
Choose the correct answer from the options given below :