Atom Having Atomic Mass Number 13 Has 7 Neutrons What Is Atomic Number Of Atom

An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom ?

Answers:

Atomic mass number = A = 13. n = 7
As A = n + p p = A – n= 13 -7 = 6
Hence Z = p = 6