Neco 2021 Chemistry Question 29

Practice objective / multiple choice question 29 from the 2021 Neco Chemistry examination.

Neco 2021 Chemistry Objective / Multiple Choice Easy Difficulty
Question 29 NECO • 2021 • CHEMISTRY • objective

Write the ground‑state electron configuration of chromium (Z = 24) and state the number of unpaired electrons present.

Answer Options

A. [Ar] 3d⁴ 4s²; 4 unpaired electrons
B. [Ar] 3d³ 4s³; 6 unpaired electrons
Correct Answer C. [Ar] 3d⁵ 4s¹; 6 unpaired electrons
D. [Ar] 3d⁶ 4s⁰; 4 unpaired electrons
Correct Answer
C
Correct Option:
[Ar] 3d⁵ 4s¹; 6 unpaired electrons

About This Question

This is Neco 2021 Chemistry Question 29. It is one of the objective questions from the 2021 Neco Chemistry examination.

Difficulty level: Easy .

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