Waec Model Questions Vol1 2020 Chemistry Question 47

Practice objective / multiple choice question 47 from the 2020 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Easy Difficulty

Question 47 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

Write the ground‑state electron configuration of the element with atomic number 26 and state how many electrons are unpaired in that configuration.

Answer Options

A. [Ar] 3d⁶ 4s²; 2 unpaired electrons

Correct Answer B. [Ar] 3d⁶ 4s²; 4 unpaired electrons

C. [Ar] 3d⁶ 4s¹; 5 unpaired electrons

D. [Ar] 3d⁵ 4s²; 3 unpaired electrons

Correct Answer

Correct Option:

[Ar] 3d⁶ 4s²; 4 unpaired electrons

About This Question

This is Waec Model Questions Vol1 2020 Chemistry Question 47. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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