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MHT CET20225 Aug 2022Evening ShiftChemistryStructure of AtomActual

What is the energy associated with first orbit of Li ²⁺ ( R _ H =2.18 10⁻¹⁸ ~J ) ?

Options

  1. A-8.72 10⁻¹⁸ ~J
  2. B-34.88 10⁻¹⁸ ~J
  3. C-2.18 10⁻¹⁸ ~J
  4. D-19.62 10⁻¹⁸ ~J

Correct answer

D. -19.62 10⁻¹⁸ ~J

Step-by-step solution

aligned & E = R _ H Z ^2 ( 1 n ^2 ) & =-2.18 10⁻¹⁸ 3^2 ( 1 1^2 ) & =-19.62 10⁻¹⁸ ~J aligned

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