Question

How many electrons protons and neutrons are in al 27 13?

Answer 1

Aluminium

Number of protons= atomic number= 13

Atomic mass= no. of protons + no. of neutrons = 27

I.e.

27= 13 + no. of neutrons

No. of neutrons = 27-13 = 14

No. of protons= 13

No if neutrons=14

This should be the answer. Hope it helps:)

Answer 2

Aluminum

No of election =No of protons=atomic number=13

No of neutrons = mass number-atomic number = 27-13= 14