Lanthanoid ions with 4f⁷ configuration are: (A) Eu²⁺ (B) Gd³⁺ (C) Eu³⁺ (D) Tb³⁺ (E) Sm²⁺. Choose the correct answer from the options given below:

d- and f-Block Elements: JEE Main 2025 Chemistry question

JEE Main 2025 · 22 Jan, Morning shift · Q57

JEE Main 202522 Jan, Morning shiftChemistryEasyd- and f-Block Elements158× since 2002

Lanthanoid ions with

4f^7

configuration are: (A)

\mathrm{Eu^{2+}}

(B)

\mathrm{Gd^{3+}}

(C)

\mathrm{Eu^{3+}}

(D)

\mathrm{Tb^{3+}}

(E)

\mathrm{Sm^{2+}}

. Choose the correct answer from the options given below:

JEE Main 2025 · 22 Jan, Morning shift · Q57

JEE Main 202522 Jan, Morning shiftChemistryEasyd- and f-Block Elements158× since 2002

Lanthanoid ions with

4f^7

configuration are: (A)

\mathrm{Eu^{2+}}

(B)

\mathrm{Gd^{3+}}

(C)

\mathrm{Eu^{3+}}

(D)

\mathrm{Tb^{3+}}

(E)

\mathrm{Sm^{2+}}

. Choose the correct answer from the options given below: