Waec Model Questions Vol1 2018 Chemistry Question 25

Practice objective / multiple choice question 25 from the 2018 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Easy Difficulty

Question 25 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

Write the ground‑state electron configuration of the element with atomic number 31 using the noble‑gas core notation.

Answer Options

A. [Ar] 3d^10 4s^2 4p^2

B. [Ar] 3d^9 4s^2 4p^1

Correct Answer C. [Ar] 3d^10 4s^2 4p^1

D. [Ar] 3d^10 4s^1 4p^1

Correct Answer

Correct Option:

[Ar] 3d^10 4s^2 4p^1

About This Question

This is Waec Model Questions Vol1 2018 Chemistry Question 25. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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