Question

12 The number of electrons in the atom of an element X is 15 and the number of neutrons ia
16. Which of the following is the correct representation of an atom of this element?
b. 31x
c. 16x
d. 15 x
16'
a. 3iX
15​

Answer 1

Explanation:

neutron = mass number - proton

proton= atomic number= electron

mass number of the element with atomic number 15 is 31.

Therefore, it will be represented as

31X

15