# relationship of subatomic particles?

what are the relationships among the number of protons, number of neutrons and number of electrons in an atom?

thanks

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• 1 decade ago

The number of protons determine which element you have. The atomic number is equal to the number of protons. More protons means a heavier atom or element.

The number of electrons determines the electrical charge of the atom you have. There is a balance between the number of protons and the number of electrons. A neutral atom has an equal number of both. For every extra electron, the charge drops by 1. For every extra proton, the charge increases by 1.

The number of neutrons determines how stable the nucleus of the atom is. For lighter atoms, the number of neutrons in a stable atom is about equal to the number of protons. For heavier atoms, the number of neutrons increases so that you may have several neutrons per proton. When you numbers of protons and neutrons together, you get the mass of the atom.

For example, a He 4 2 atom (where the 4 is written above the 2) has an atomic mass of 4 units, with 2 protons and 2 neutrons. A He 5 2 atom would have an atomic mass of 5 units, with 2 protons and 3 neutrons. The He 4 2 would be stable, but the He 5 2 would also be unstable, eventually decaying through a radioactive process.

In addition, protons and electrons are stable particles. They do not decay. A neutron (when not in an atomic nucleus) is an unstable particle, and may decay into a proton, electron, and an antineutrino (a special tiny particle that binds the proton and electron together).

I hope this helps you a tiny bit ;)

• 1 decade ago

The number of protons and neutrons added together create the mass number. The number of electrons and protons are the same if there is no subatomic charge. If the charge is positive then there is more protons than electrons. If the charge is negative then there is more electrons than neutrons.

Hope this helps some

• kelm
Lv 4
4 years ago

yet in a different way of observing this, without getting into quarks and gluons, is via Heisenberg's uncertainty concept in quantum mechanics. that announces that's not possible to video exhibit the two the placement and velocity of an merchandise precisely, so that's not possible to "see" a proton or electron as a "factor". the only subject you will possibly be conscious is that there's a much better robust or cut back risk that the particle is in any particular place. So wherein have, each and each and each and each particle is a variety of fuzzy section and the climate top off the entire of section. of direction electrons (case in point) are way lots greater beneficial probably to be suggested in "shells" around the atomic nucleus than everywhere else, even though the photos in effortless chemistry books to describe valency, the periodic table, etc are deceptive by skill of way of fact they are able to furnish a faux effect of an exact shape some element like a miniature image voltaic kit.