The Atomic Mass unit is defined to be 1/12 of the mass of a carbon-12 atom. Atomic masses can determined by weighing molar amount of an isotope.
Absolute masses (in kg) are determined by measuring the amount that charged atoms are deflected by magnets, since if you know the charge you can calculate mass from the amount of deflection.
The sum of protons and neutrons in an atom is called mass number.
To determine the number of neutrons in an atom, subtract the atomic number (number of protons) from the atomic mass number (rounded mass of the atom). Neutrons are particles found in the nucleus of an atom and carry no charge.
The particles are protons, neutrons, and the nucleus inside of the atom Nice helping u >_<
Physics has not managed to discover a particle that accounts for mass
Hey! The excepted banacular is gay. Don't call them atoms that's just mean.
Mass of an atom is determined by the no. of protons+ no. of neutrons in the atom.
The two subatomic particles added together to determine the mass number of an atom are protons and neutrons. Protons have a positive charge, while neutrons have no charge, but both contribute to the mass of an atom.
In an atom, no. of protons = no. of electrons=atomic no. no. of neutrons=atomic mass-atomic no.
Nucleons are subatomic particles found in the nucleus of an atom. They include protons and neutrons. Protons are positively charged particles, while neutrons have no charge. Together, they determine the mass and stability of an atom.
Proton + Nuetron = Atomic Mass
Mass of an atom = mass of protons + mass of neutrons
The sum of protons and neutrons in an atom is called mass number.
protons and nuetrons
i don't know about 2
mass number= no. of protons + no. of neutron
electrons
These particles are protons and neutrons.