2007-01-10 13:06:05 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The AMU was first defined as the mass of the hydrogen atom. This was just a convenient reference for comparison. It now has a more precise definition, see the reference. The mass of any particle can be given in AMU, kilograms, or any other unit of mass with a simple numeric conversion factor.
2007-01-10 14:53:14 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
The protons and the neutrons, the subatomic particles that the atomic nuclei are made off have masses approximately equal to the AMU, but slightly larger (the neutron slightly more massive than the proton). The electron is nearly 2000 times less massive than the proton.
2007-01-14 20:15:36 · answer #2 · answered by Bushido The WaY of DA WaRRiOr 2 · 1⤊ 0⤋
the atomic mass unit is another term for the nucleas which contains two types of subatomic particles. Protons, and neutrons. Electrons are another type of subatomic particle but they flow around the nucleus inside the atom... :)
2007-01-10 21:12:29 · answer #3 · answered by Trevor Smith 3 · 1⤊ 1⤋