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Number of electrons present in P^(-3) io...

Number of electrons present in `P^(-3)` ion having 15 protons a r e ......

A

15

B

16

C

18

D

12

Text Solution

Verified by Experts

The correct Answer is:
C
No. of protons - 15 `therefore` Atomic no = Z = 15 `therefore` Neutral atom must have 15 electrons P-3 has - 3 charge `therefore` It has additional 3 electrons `therefore` Total electrons = (15 + 3) - 18
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