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MHT CET202310 May 2023Evening ShiftChemistryStructure of AtomActual

What is the radius of fourth orbit of Be ⁺⁺⁺ ?

Options

  1. A211.6 pm
  2. B158.7 pm
  3. C52.9 pm
  4. D13.2 pm

Correct answer

A. 211.6 pm

Step-by-step solution

Be ⁺⁺⁺ is a hydrogen-like species having Z =4 . Radius of the fourth orbit of Be ⁺⁺⁺= r ₄= 52.9 (4)^2 4 pm =211.6 pm

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