Chemistry · 2023
JEE Main · 31 January 2023, Shift 2 · Q39
Which of the following elements have half-filled f-orbitals in their ground state? (Given: atomic number Sm =62; Eu =63; Tb =65; Gd =64, Pm =61 ) A.…
Which of the following elements have half-filled f-orbitals in their ground state?
(Given : atomic number $\displaystyle \mathrm{Sm}=62 ; \mathrm{Eu}=63 ; \mathrm{Tb}=65 ; \mathrm{Gd}=64, \mathrm{Pm}=61$ )
A. Sm
B. Eu
C. Tb
D. Gd
E. Pm
Choose the correct answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(3)
B and D only
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.