NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Correct outer electronic configuration of trivalent cationic form of

{Np}

(Neptunium, atomic number of 93 ) is

View answer and explanation

Correct option: C

[R n] 5 f^4

Option C (

[R n] 5 f^4

) is correct because Neptunium (Np) has an atomic number of 93. After losing 3 electrons to form

Np^{3+}

, the resulting electronic configuration is

[Rn]5f^4

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