Question

When chromium loses two electrons, its configuration changes to A. [Ar]4s13d5. B. [Ar]4s1. C. [Ar]3d4. D. [Ar]4s13d4

Answer 1

A is the correct answer here, it's configuration becomes
$[Ar]3 d^{5} 4s^{1}$

Answer 2

$\huge{\mathfrak{HEYA\:MATE\:!!}}$

Answer.....

The configuration of chromium in ground state is $[Ar]3d^5 4s^1$.

so on losing 2 electrons , it will be →

$[Ar]3d^4$.

option c ✔️

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