Post Utme Greenfield University 2023 Chemistry Question 33

Practice objective / multiple choice question 33 from the 2023 Post Utme Greenfield University Chemistry examination.

Post Utme Greenfield University 2023 Chemistry Objective / Multiple Choice
Question 33 POST_UTME_GREENFIELD_UNIVERSITY • 2023 • 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

Correct Answer A. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰
B. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶
C. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s²
D. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰
Correct Answer
A
Correct Option:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

About This Question

This is Post Utme Greenfield University 2023 Chemistry Question 33. It is one of the objective questions from the 2023 Post Utme Greenfield University Chemistry examination.

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