Post Utme Ims U 2021 Chemistry Question 21

Practice objective / multiple choice question 21 from the 2021 Post Utme Ims U Chemistry examination.

Post Utme Ims U 2021 Chemistry Objective / Multiple Choice

Question 21 POST_UTME_IMS_U • 2021 • CHEMISTRY • objective

The atomic radius of an element decreases across a period in the periodic table. Which of the following is a correct explanation for this tr\end?

A. The atomic radius decreases due to the decrease in the number of energy levels across a period.

Correct Answer B. The atomic radius decreases due to the increase in the effective nuclear charge across a period.

C. The atomic radius decreases due to the decrease in the atomic mass across a period.

D. The atomic radius decreases due to the increase in the number of protons across a period.

Correct Answer

Correct Option:

The atomic radius decreases due to the increase in the effective nuclear charge across a period.

This is Post Utme Ims U 2021 Chemistry Question 21. It is one of the objective questions from the 2021 Post Utme Ims U Chemistry examination.

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support