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The number of electrons in an element X ...

The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element ?

A

`overset(31)underset(15)X`

B

`overset(31)underset(16)X`

C

`overset(16)underset(15)X`

D

`overset(15)underset(16)X`

Text Solution

Verified by Experts

The correct Answer is:
A
correct answer a Mass no = o of electrons (protons)+no of neutrons
=15+16=31
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