TRENDS IN THE MODERN PERIODIC TABLE PERIODIC CLASSIFICATION OF ELEMENTS 05 Class 10th Chemistry (Practice Sheet) 1 What factor is responsible for the decrease in electronegativity down a group? A. Increasing nuclear charge B. Decreasing metallic character C. Increasing distance between nucleus and valence shell D. Increasing non-metallic character 2 The tendency to lose valence electrons decreases along a period, leading to a decrease in: A. Atomic size B. Non-metallic character C. Metallic character D. Electronegativity 3 What happens to the atomic radius as you move along a period in the periodic table? A. It increases B. It decreases C. It remains constant D. It fluctuates 4 What is the primary factor responsible for the increase in atomic radius down a group? A. Increasing metallic character B. Increasing nuclear charge C. Addition of new shells D. Decreasing number of valence electrons 5 The variation in valency across a group is due to the: A. Increase in atomic size B. Presence of the same number of valence electrons C. Decrease in metallic character D. Fluctuation in electronegativity 6 Explain why the atomic radius decreases along a period in the periodic table. 7 How does the addition of new shells influence the atomic radius down a group? 8 Describe the relationship between metallic character and the tendency to lose valence electrons. 9 Why does electronegativity increase along a period? 10 How does the variation in non-metallic character down a group correlate with the distance between the nucleus and valence shell? Page 1 Email: Phone No: Website:
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