Well, the neutrons AND protons are totaled together to equal the atomic weight!
Atomic weight/ mass = number of protons + number of neutrons
No, the atomic weight of an element is not equal to the number of protons minus the number of neutrons. Atomic weight is the average weight of an element's isotopes taking into account their abundance, which includes the sum of the protons and neutrons in the nucleus.
Neutrons and protons combined
atomic weight = mass of protons + mass of neutrons
If you add the number of protons to the number of neutrons in an atom, you have calculated that atom's atomic mass.
It is not correct.
Atomic weight = Weight of protons + Weight of neutrons
equal to number of protons
Find the atomic number. That tells you the number of protons and electrons (in a neutral atom). Then find the atomic weight. The number of protons plus the number of neutrons will equal the atomic weight. So if you know the wt. just subtract the number of protons and you will have the number of neutrons.
false
The atomic mass doesn't equal to the number of protons. The number of protons plus the number of neutrons equal to the atomic weight... DAI BI!
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons) R