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A single electron in an ion has ionizati...

A single electron in an ion has ionization energy equal to `217.6eV`. What is the total number of neutrons present in one ion of it?

A

2

B

4

C

5

D

9

Text Solution

Verified by Experts

The correct Answer is:
C
lonization energy
`-217.6 = -13.6 xx (Z^2)/(1^2) , Z =4m`
So, it is `""_(4)^(9) Be^(+3),` no. of neutrons `9-4=5`
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