Radius of the third shell of H-atom is
Correct answer: B. 4.761 Å
- A. 5.761 Å
- B. 4.761 Å
- C. 6.671 Å
- D. 3.716 Å
Explanation
The radius of an orbit is given by,r=4π2mZe2n2h2 Substituting the values of h, m, Z=1 for hydrogen and the electron charge army be calculated asr=0.529×n2 ÅFor n=3r=4.761 Å
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