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Question: Answered & Verified by Expert
Ionisation energy of a hydrogen like species is 54.4 eV. Calculate radius of second bohr orbit of this species.
ChemistryStructure of AtomJEE Main
Options:
  • A 0.529   A o
  • B 1.058   A o
  • C 2.116   A o
  • D 2.116   A o
Solution:
1500 Upvotes Verified Answer
The correct answer is: 1.058   A o
Ionisation energy 13.6×z2=54.4
∴ Z = 2
r = 0.529  n 2 z A o  = 0.529 ×  2 2 2  = 1.058  A o

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