Electrons
The electron has the smallest mass between subatomic particles: 9,10938291(40).10-31 kg.
Hydrogen has the smallest atomic mass at roughly 1.008 grams per mol (6.02x10^23 atoms)
proton has the smallest mass of about 1.67277 x 10-27kg
Hydrogen has the smallest mass of all the elements. It's just a proton and an electron. [:
electrons
In the atom the electron is the lightest.
among these Electron has the least mass....
Yes, a neutron has mass. The mass of a neutron is slightly greater than the mass of a proton, which is another subatomic particle found in the nucleus of an atom. Neutrons and protons are both much more massive than electrons, which are the smallest subatomic particles.
Electrons have a very small mass compared to other subatomic particles like protons and neutrons. However, they are not the smallest known particles in terms of mass. The smallest known particles are neutrinos, which have a mass close to zero.
The smallest part of an atom would be a quark. Quarks are either up or down quarks, and have virtually no mass. Neutrinos have even less mass, but are not part of an atom.
The smallest units of matter are the subatomic particles.
A positively charged subatomic particle is a proton. Protons are found within the nucleus of an atom and carry a positive electrical charge.