Question

What is the formula to calculate the number of neutrons?

Answer 1

The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

Answer 2

The formula to calculate the number of neutrons M-Z.

• The formula to calculate the number of neutrons is given by M-Z.
• Where M is the mass number of the atom.
• The mass number of an atom is the sum of the number of protons and the number of neutrons.
• Z is the atomic number of an atom.
• The atomic number of an atom gives the number of protons.