Question

Answer the following:

1.How many protons and neutrons are present is an atom of calcium (Mass # =

40)?

Protons = ________ Neutrons = _______​

Answer 1

ANSWER:-

Number of Protons = Atomic Number (Z) = 11

Number of electrons = Number of Protons (in neutral atom) = 11

Number of neutrons = Mass Number (A) - Atomic Number (Z)

= 23 - 11

= 12