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AP EAMCET202318 May 2023Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

The correct order of atomic radii of B , Be , N and C is

Options

  1. ABe < B < C < N
  2. BN < B < C < Be
  3. CN < C < B < Be
  4. DBe < C < B < N

Correct answer

C. N < C < B < Be

Step-by-step solution

Atomic radii generally decreases in a period from left to right due to an increase in the effective nuclear charge. Thus, ₇ ~N < ₆ C < ₅ ~B < ₄ Be

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