Waec Model Questions Vol1 2021 Chemistry Question 28

Practice objective / multiple choice question 28 from the 2021 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Easy Difficulty
Question 28 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

The diagram shows a Bohr model of an atom with 2 electrons in the K‑shell, 8 electrons in the L‑shell and 5 electrons in the M‑shell. (i) Write the ground‑state electron configuration of the element. (ii) State the name and symbol of the element.

Answer Options

A. 1s² 2s² 2p⁶ 3s² 3p²; Silicon (Si)
B. 1s² 2s² 2p⁶ 3s² 3p⁴; Sulfur (S)
Correct Answer C. 1s² 2s² 2p⁶ 3s² 3p³; Phosphorus (P)
D. 1s² 2s² 2p⁶ 3s² 3d¹ 3p³; Phosphorus (P)
Correct Answer
C
Correct Option:
1s² 2s² 2p⁶ 3s² 3p³; Phosphorus (P)

About This Question

This is Waec Model Questions Vol1 2021 Chemistry Question 28. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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