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Consider the following statements and select the correct code.
Assertion (A) : In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group
Reason (R) : In a group, the atomic radii generally increase from top to bottom.
  • a)
    Both A and R are individually true and R is correct explanation of A
  • b)
    Both A and R are individually true and R is not the correct explanation of A
  • c)
    A is true but R is false
  • d)
    A is false but R is true
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Consider the following statements and select the correct code.Assertio...
Electron affinity generally decreases from top to bottom in a group. Atomic radii increases from top to bottom as energy levels increases because as we move down a group number of electrons increases.
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Most Upvoted Answer
Consider the following statements and select the correct code.Assertio...
Explanation:
Assertion (A) is false because electron affinity does not always increase from top to bottom in a group. For example, the electron affinity of group 18 elements (noble gases) is very low because they have a completely filled valence shell and do not readily accept an additional electron.

Reason (R) is true because in a group, the atomic radii generally increase from top to bottom. This is because the number of energy levels or shells increases from top to bottom, which results in an increase in the atomic radius.

Therefore, option D is the correct answer as A is false but R is true.
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Consider the following statements and select the correct code.Assertion (A) : In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a groupReason (R) : In a group, the atomic radii generally increase from top to bottom.a)Both A and R are individually true and R is correct explanation of Ab)Both A and R are individually true and R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?
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