Chemistry · Periodic Table Trends
Consider the following statements regarding the modern periodic table: I. There are 18 groups and 7 periods in the periodic table. II. The valency of elements increases from 1 to 4 and then decreases to 0 on moving from left to right in a period. III. Atomic size, electropositive character, and metallic character decrease from left to right in a period. IV. In a period, electronegativity and electron affinity generally increase from left to right. Which of these statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1I and IV
- 2III and IV
- 3I, III and IV
- 4II and III✓
Correct answer
II and III
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