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NEET
Exam
NEET
Subject
Chemistry
Chapter
s Block Elements

NEET · Chemistry · s Block Elements

Which of the following ions is smaller than the parent atom among...

Which of the following ions is smaller than the parent atom among alkali metals?

Options

  1. AM+ (Monovalent ion)
  2. BM₂⁺ (Divalent ion)
  3. CM₃⁺ (Trivalent ion)
  4. DM- (Negative ion)

Correct answer

A. M+ (Monovalent ion)

Step-by-step solution

Among alkali metals, the monovalent ions (M+) are smaller than the parent atom. This is because the loss of one electron results in a decrease in electron repulsion and a smaller ionic radius.
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