Question

Number of neutrons present in 27 is :
13 Al
(a) 13. (b)14
(c) 10. (d) 11​

Answer 1

Answer:

(b) 14

Explanation:

The number of protons in Aluminium = 13.

The atomic mass = 27 .

The number of protons + the number of neutrons = 27.

That means, the number of neutrons = 27–13 = 14.