According to Bohr's model, the radius of the second orbit of helium at – McqOptions

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1.	According to Bohr's model, the radius of the second orbit of helium atom is [Bihar MEE 1995]
A.	0.53 Å
B.	1.06 Å
C.	2.12 Å
D.	0.265 Å
Answer» C. 2.12 Å

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