Neco 2018 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2018 Neco Chemistry examination.

Neco 2018 Chemistry Objective / Multiple Choice Easy Difficulty
Question 23 NECO • 2018 • CHEMISTRY • objective

The ground‑state electron configuration of a neutral atom is \(1s^{2}\,2s^{2}\,2p^{6}\,3s^{2}\,3p^{5}\). Identify the element and state the number of unpaired electrons in this configuration.

Answer Options

A. Argon; 0
Correct Answer B. Chlorine; 1
C. Chlorine; 0
D. Sulfur; 2
Correct Answer
B
Correct Option:
Chlorine; 1

About This Question

This is Neco 2018 Chemistry Question 23. It is one of the objective questions from the 2018 Neco Chemistry examination.

Difficulty level: Easy .

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