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How many electrons does \({31}_{15}\)P\(^3-\) contain?

How many electrons does \({31}_{15}\)P\(^3-\) contain?
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  • A 12
  • B 15
  • C 16
  • D 18
Correct Answer: Option D
Explanation:
- Phosphorus also has 15 electrons.
- Here we have P3- which means that this atom has gained 3 electrons. So, P3- has 18 electrons.

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