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KCET2007PhysicsAtomic Physics

The ionisation energy of Li ²⁺ is equal to

Options

  1. A9 h c R
  2. B6 h c R
  3. C2 h c R
  4. Dh c R

Correct answer

A. 9 h c R

Step-by-step solution

Ionization energy =R c h Z² Z=3 for Li ²⁺ Ionization energy =(3)² R c h=9 R c h

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