WAEC Chemistry 2022 Objective — Question 43

Question 43 of 50 from the West African Examinations Council (WAEC) Chemistry 2022 Objective paper, with the correct answer and a full explanation.

Electropositivity of elements across the periodic table normally

A. remains constant down the group
B. increases across the period
C. decreases across the periodCorrect
D. decreases down the group

Explanation

Electropositivity increases down a group and decreases across a period (left to right), as atomic size decreases and effective nuclear charge increases across a period.

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