Atoms And Nuclei Question 60

Question: According to Bohr’s model, the radius of the second orbit of helium atom is [Bihar MEE 1995]

Options:

A) 0.53 Å

B) 1.06 Å

C) 2.12 Å

D) 0.265 Å

Show Answer

Answer:

Correct Answer: B

Solution:

r=n2Z(r0) ; Þ r(n=2)=(2)22×0.53=1.06,\AA



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