Question

The mass number of an atom is 31 and atomic number is 15. Find the number of neutrons, protons in this atom. with process.​

Answer 1

Answer:

Explanation:

Mass number = Neutrons +protons = 31

Atomic number = Protons =15

So ,Neutrons= 31-15 = 16

Protons = 15

Electrons = Protons = 15

Answer 2

Answer:

number of protons =15

number of neutrons =16

Explanation:

Atomic number =number of protons = number of electrons

hence atomic number =15 then number of protons and electrons = 15

Mass number = number of protons + neutrons

31 = 15 + neutrons

31-15=neutrons

16 = number of neutrons.