To find the number of neutrons in an atom you subtract the atomic mass from
the mass number
Number of neutrons = Mass number - Number of protons
The mass number of an isotope is the number of neutrons and protons in the isotope, let this be p +n = (mass number). To find the number of neutrons you need the atomic number (number of protons), let this be p. You then subtract the two: mass number - atomic number = no. of neutrons p + n - p = no. of neutrons = n
The ratio of neutrons to protons in an atom can be calculated by subtracting the atomic number (number of protons) from the atomic mass (sum of protons and neutrons) of the atom. Mathematically, ratio of neutrons to protons = (Atomic mass - Atomic number).
To find the number of neutrons in an atom, you subtract the atomic number (which represents the number of protons) from the mass number (the total number of protons and neutrons). The formula is: Number of Neutrons = Mass Number - Atomic Number. This calculation gives you the number of neutrons present in the nucleus of the atom.
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
Neutrons = Mass number - Number of Protons
number of neutrons = mass number - atomic number
To find the number of nucleons in an atom, you add the number of protons and the number of neutrons together. Nucleons are the collective term for protons and neutrons found in the nucleus of an atom.
Number of neutrons = Mass number - Number of protons
The mass number of an isotope is the number of neutrons and protons in the isotope, let this be p +n = (mass number). To find the number of neutrons you need the atomic number (number of protons), let this be p. You then subtract the two: mass number - atomic number = no. of neutrons p + n - p = no. of neutrons = n
Number of neutrons = mass number - number of protons
Mass number = Atomic number (or number of protons) + Number of neutrons
The ratio of neutrons to protons in an atom can be calculated by subtracting the atomic number (number of protons) from the atomic mass (sum of protons and neutrons) of the atom. Mathematically, ratio of neutrons to protons = (Atomic mass - Atomic number).
Number of neutrons = Atomic mass of an isotope - Number of protons (Atomic number)
The number of protons and neutrons in the nucleus
Number of neutrons = Mass number - Number of protons
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the mass number (sum of protons and neutrons). Neutrons do not carry a charge and help stabilize the nucleus of an atom.