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MHT CET202415 May 2024Morning ShiftChemistryStructure of AtomActual

Calculate the radius of first orbit of Li ⁺⁺ .

Options

  1. A70.53 pm
  2. B158.7 pm
  3. C17.63 pm
  4. D282.13 pm

Correct answer

C. 17.63 pm

Step-by-step solution

r _ n = 52.9 ( n ^2 ) Z pm For Li ⁺⁺, Z =3 First orbit, n = 1 r _ n = 52.9 ( n ^2 ) Z pm = 52.9(1)^2 3 =17.63 pm

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