Which of the following elements have half-filled f-orbitals in their ground state?…
Chemistry · JEE Main · NTA Exams — d- and f-Block Elements
Which of the following elements have half-filled f-orbitals in their ground state?
(Given: atomic number
\(\mathrm{Sm}=62 ; \mathrm{Bu}=63 ; \mathrm{Tb}=65 ; \mathrm{Gd}=64, \mathrm{Pm}=61\))
A.\(\text { Sm }\) B. \(\text { Eu }\)
C. Tb D. Gd
E. Pm
Choose the correct answer from the options given below: (Jee Main 2023)
(Given: atomic number
\(\mathrm{Sm}=62 ; \mathrm{Bu}=63 ; \mathrm{Tb}=65 ; \mathrm{Gd}=64, \mathrm{Pm}=61\))
A.\(\text { Sm }\) B. \(\text { Eu }\)
C. Tb D. Gd
E. Pm
Choose the correct answer from the options given below: (Jee Main 2023)
- B and D only
- A and E only
- A and B only
- C and D only
Answer
(A) B and D only
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