Class 9 Chemistry MCQs – Certification Test 20

Periodicity and Properties Quiz (Question 20) – App & e-Book Download

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MCQ 20: Across the period the atomic size decreases due to:

shielding effect
photoelectric effect
increase in nuclear force of attraction
decrease in nuclear force of attraction

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Class 9 Chemistry Quiz App & e-Book – Periodicity and Properties Certification Guide

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