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Molecular Speeds - Vrms, Vavg, Vmps

What is likel...

Question

What is likely to be orbit number for a circular orbit of diameter 20 nm of the hydrogen atom?

A

10

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B

14

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C

12

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D

16

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Solution

The correct option is B 14
Radius= 0.529 $\frac{n^{2}}{Z}$
$Å = 10 \times 10^{- 9}$ m
So, $n^{2} = 189$ or,
n ≈ 14

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Molecular Speeds - Vrms, Vavg, Vmps

Standard XII Chemistry