Physics · Atomic Structure
The difference between the radii of the 3rd and 2nd orbit of a hydrogen atom is x pm. The difference between the radii of the 4th and 3rd orbit of a Li2+ ion is y pm. The ratio y:x is equal to:
- 11:3
- 23:1
- 37:15
- 415:7✓
Correct answer
15:7
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