Waec Model Questions Vol1 2019 Chemistry Question 49

Practice objective / multiple choice question 49 from the 2019 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Easy Difficulty

Question 49 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

Write the ground‑state electron configuration of chromium (atomic number 24) and state the number of unpaired electrons in its atom.

Answer Options

Correct Answer A. [Ar] 3d^5 4s^1; 6 unpaired electrons

B. [Ar] 3d^4 4s^2; 4 unpaired electrons

C. [Ar] 3d^6 4s^0; 4 unpaired electrons

D. [Ar] 3d^3 4s^2; 5 unpaired electrons

Correct Answer

Correct Option:

[Ar] 3d^5 4s^1; 6 unpaired electrons

About This Question

This is Waec Model Questions Vol1 2019 Chemistry Question 49. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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