Well, This website is a piece of @$%#!
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.
No, the number of protons is equal to the atomic number, which is also the same as the number of electrons in a neutral atom. The atomic mass, on the other hand, is the sum of the protons and neutrons in an atom's nucleus.
The number of protons in an atom is equal to its atomic number, which identifies the element. Neutrons are found by subtracting the atomic number from the mass number. For a neutral atom, the number of electrons is equal to the number of protons.
Roughly, the number of neutrons. Note that the atomic mass is only approximately equal to the number of protons plus the number of neutrons - there is a relatively small discrepancy, due to the binding energy.
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
atomic mass number - protons = number or neutrons
mass no. = no. of protons + no. of neutrons
The number of neutrons in the nucleus is not the answer its wrong trust me Mass number = neutrons + protons. Atomic number = protons. Trust yourself to work out the difference.
This question is slightly obscure... but I think I know what you're asking for.The atomic number (Z) is the number of protons in the atom (also the proton number). The neutron number (A) is the number of neutrons + protons. This number is considered to be the mass of the atomic particle. The number of neutrons by itself is generally not used.The number of neutrons is quite variable (that's how you get isotopes) ; but the low weight elements (beginning with Helium) often have equal numbers of neutron and protons, but as the atomic weight [number] goes up the number of neutrons needed to stabilize the nucleolus increases.
The number of neutrons in the nucleus is not the answer its wrong trust me Mass number = neutrons + protons. Atomic number = protons. Trust yourself to work out the difference.
Berilyllium 'Be' has 4 protons and electrons (atomic number), it has 5 neutrons (mass number minus atomic number) :)
atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number