Gce Model Questions Vol1 2019 Chemistry Question 40

Practice objective / multiple choice question 40 from the 2019 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Easy Difficulty
Question 40 GCE_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective
Gce Model Questions Vol1 2019 Chemistry Question 40 diagram

The diagram shows a Bohr model of an atom. The nucleus contains 15 protons and 15 neutrons. The electron shells are labelled K, L and M and contain 2, 8 and 5 electrons respectively. Identify the element and write its ground‑state electron configuration.

Answer Options

A. Sulfur (S); electron configuration 1s² 2s² 2p⁶ 3s² 3p⁴
B. Chlorine (Cl); electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵
Correct Answer C. Phosphorus (P); electron configuration 1s² 2s² 2p⁶ 3s² 3p³
D. Silicon (Si); electron configuration 1s² 2s² 2p⁶ 3s² 3p²
Correct Answer
C
Correct Option:
Phosphorus (P); electron configuration 1s² 2s² 2p⁶ 3s² 3p³

About This Question

This is Gce Model Questions Vol1 2019 Chemistry Question 40. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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