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AIIMS2005ChemistryStructure of Atom

The most probable radius (in pm) for finding the electron in He ⁺ is

Options

  1. A0.0
  2. B52.9
  3. C26.5
  4. D105.8

Correct answer

C. 26.5

Step-by-step solution

Most probable radius =a₀ / Z where a₀=52.9 pm . For helium ion, Z=2 . r_ mp = 52.9 2 =26.45 pm

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