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How many valence electrons are contained in the... - JAMB Chemistry 2020 Question

How many valence electrons are contained in the element \(^{31}_{15}P\)?

A

3

B

4

C

15

D

31

correct option: a

The element is Phosphorus in group 5 with valencies of 3 and 5. These are contained in the third energy level of the atom. Due to the number of valence electrons, Phosphorus is capable of forming three bonds with other elements.

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