If the radius of inner most electronic orbit of a hydrogen atom is 5.3 × 10 –11 m, then…
Physics · Class 12 · CBSE — Atoms
If the radius of inner most electronic orbit of a hydrogen atom is 5.3 × 10–11 m, then the radii of n = 2 orbit is
- 1.12 Å
- 2.12 Å
- 3.22 Å
- 4.54 Å
Answer
(B) 2.12 Å
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