Post Utme Christopher University 2017 Chemistry Question 14

Practice objective / multiple choice question 14 from the 2017 Post Utme Christopher University Chemistry examination.

Post Utme Christopher University 2017 Chemistry Objective / Multiple Choice
Question 14 POST_UTME_CHRISTOPHER_UNIVERSITY • 2017 • CHEMISTRY • objective

The atomic radius of a certain element is 100 pm. If the element has an atomic number of 20, what is its electron configuration?

Answer Options

A. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10
B. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8
C. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^9
Correct Answer D. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6
Correct Answer
D
Correct Option:
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6

About This Question

This is Post Utme Christopher University 2017 Chemistry Question 14. It is one of the objective questions from the 2017 Post Utme Christopher University Chemistry examination.

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