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AIIMS2018ChemistryStructure of Atom

Calculate the velocity of an electron placed in the second orbit of Li ²⁺ ion.

Options

  1. A0.521 ~m ~s ⁻¹
  2. B3.27 10^6 ~cm ~s ⁻¹
  3. C4.23 10^3 ~m ~s ⁻¹
  4. D3.27 10^6 ~m ~s ⁻¹

Correct answer

D. 3.27 10^6 ~m ~s ⁻¹

Step-by-step solution

The velocity of an electron in n^ th shell of the hydrogen like atom = 2.18 10^6 ~ms ⁻¹ Z n On putting Z=3 and n=2 , v= 2.18 10^6 3 2 =3.27 10^6 ~m ~s ⁻¹

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