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Which of the following gaseous atoms has...

Which of the following gaseous atoms has highest value of `IE`?

A

P

B

Si

C

Mg

D

Al

Text Solution

Verified by Experts

The correct Answer is:
A
P has half filled orbital while other do not have half filled orbital `e^(-)`
Hence `P = 1s^2 ,2 s^2 2p^6, 3s^2 3p^3` half filled orbital.
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