Chemistry · Periodic Classification of Elements
Which of the following statements is/are correct regarding the Modern Periodic Table? I. Properties of elements are a periodic function of their atomic mass. II. The Modern Periodic Table has 18 vertical columns known as 'groups' and 7 horizontal rows known as 'periods'.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Neither I nor II
- 2Only I
- 3Only II✓
- 4Both I and II
Correct answer
Only II
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