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Q.

In a hydrogen atom, an orbit has a diameter of about $16.92 Å$ . What is the maximum number of electrons, that can be accommodated?

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a

8

b

72

c

50

d

32

answer is B.

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Detailed Solution

Number of electron can be calculated as;

$\begin{array}{l} \frac{16.92}{2} = 0.529 \times n^{2} \\ \Rightarrow n = 4 \\ m_{a} \times m_{e} = 2 \times 4^{2} = 32 \end{array}$

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