Atomic Mass is the number of protons in an atom
mass number is the number of protons plus neutrons in an atom
the number of neutrons would equal the mass number minus the atomic number.
Atomic number -> Number of protons
Mass number -> Number of protons and neutrons
So. if you substract atomic number from the mass number you get the number of neutrons.
The number of neutrons per atom is a characteristic of a single isotope of an element and can be obtained by subtracting the atomic number of the element from the mass number of the isotope.
Number of neutrons = Mass number - Number of protons
relative atomic mass- atomic number
Neutrons, like protons are considered to have a mass of about 1. To find the number of neutrons, subtract the atomic number from the atomic mass.
Mass number!:)
The mass number is the average atomic mass of all the isotopes that are found in nature.
if you arent given the atomic numbert for an element - where could you find it?
Number protons + number neutrons is called the mass number or the atomic mass.
Number of neutrons = Mass number - Number of protons
To find the number of neutrons in an atom you subtract the atomic mass fromthe mass number
Neutrons = Mass number - Number of Protons
Mass number = Number of protons + number of neutrons
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
You need to find the atomic number, and the atomic mass. The atomic number i the number of PROTONS in the nucleus, the atomic mass, or mass number, is the number of PROTONS and NEUTRONS in the nucleus. To find the number of neutrons you subtract the atomic number from the mass number.
number of neutrons = mass number - atomic number
Mass number = Number of Protons + Number of Neutrons
Number of neutrons = mass number - number of protons
Mass number = Atomic number (or number of protons) + Number of neutrons
Number of neutrons = Mass number - Number of protons
The Atomic Mass is equal to the number of protons plus neutrons. So if you know the atomic number then you can find out the number of neutrons Atomic # is the amount of Protons or Electrons Atomic Mass- Number of protons plus neutrons Atomic Mass-Atomic Number = Amount of neutrons