Name the particles which actually determine the mass of an atom.

Which particles determine the mass of an atom ?

Which particles are mainly responsible for the mass of an atom?

Atoms of elements are made up mainly of protons, electrons and neutrons. a) Which of these particles are present in the nucleus of atoms? b) The discovery of which particle is related to the scientist .J. J. Thomson? c) Name the positively. charged particles? d) Name the scientist who proved that most of. the mass of an atom is concentrated in the nucleus?

Name a neutral particle in atom?

Name three fundamental particles which make an atom.

Name the sub-atomic particles.

Name the fundamental particles in an atom.

What is the actual mass of a ""^(12)C -atom.