To find the number of neutrons in an atom, you subtract the number of protons (the atomic number) from the mass number (the total number of protons and neutrons).
So, the correct answer is:
Subtract the number of protons from the mass number.
Add the atomic number and mass number together
Subtract the number of electrons from the number of protons
Subtract the number of protons from the mass number
1 answer
To find the number of neutrons in an atom, you subtract the number of protons (the atomic number) from the mass number (the total number of protons and neutrons).
So, the correct answer is:
Subtract the number of protons from the mass number.