The neutron has a mass very close to the mass of proton (but not identical).
The electron is the subatomic particle with the least mass. It has a mass of about 1/1836 of a proton or neutron.
Commonly considered to be a neutron. However the true mass of a neutron is slightly higher than the combined mass of a proton and an electron.
Normal matter: Proton Anti-matter: Positron
An alpha particle has approximately 4 times the mass of a proton.
The largest subatomic particle (by mass) is the proton. The mass of subatomic particles is measured in atomic mass units (amu). The proton has a mass of 1.007 amu, the neutron has a mass of 1 amu, and the electron has a mass of .0005 amu.
neutron
The neutron is a subatomic particle that has mass nearly equal to that of a proton but carries no electrical charge.
An "element" is not a subatomic particle. Your question makes no sense and is therefore unanswerable.Another answer:Since an element is not a subatomic particle, the only answer can be a proton.
The electron is the subatomic particle with the least mass. It has a mass of about 1/1836 of a proton or neutron.
the neutron
Both one proton and one neutron each has a relative mass of 1 a.m.u.
The neutron has the biggest mass; but the mass of proton is very close.
Proton or neutron
among these Electron has the least mass....
Commonly considered to be a neutron. However the true mass of a neutron is slightly higher than the combined mass of a proton and an electron.
The proton is the subatomic particle which carries the positive charge. It has a charge of +1 and a mass of 1,672 621 637(83).10-27 kg.
Proton has a greater mass than the electron.