Atomic numbers

[dunbaranne]

What is the name given to a stable, positively charged elementary particle, found in atomic nuclei in numbers equal to its atomic number?

[Gef]

proton

[fo3nix]

though it isn't elementary.

[mibn2cweus]

Positron

[fo3nix]

positron?!! hardly. neither stable, nor found in the nucleus much. and its numbers are not equal to its atomic number.

the answer, as gef said, is definitely proton. its just that the question isn't quite precise (i assume simplified for GCSE/equivalent standard).

[Loosehead]

A positron is what would be found in anitmatter, the opposite of an Electron. Only known to exist on Star Trek or momentarily at the Cerne accelerrator. I think Proton is what you are looking for.

[mibn2cweus]

The positron has been annihilated thanks to alert AB contributors.

Proton is the name given to a stable, positively charged sub-atomic particle, found in atomic nuclei in numbers equal to its atomic number.

Up quark is the name given to a stable, positively charged elementary particle, found in atomic nuclei in numbers that are multiples of its atomic number.

[Hamish]

Hi Folks,

the positron is real - see PET, also a biproduct of nuclear fusion and some decay processes

[mibn2cweus]

Some more about that other stuff that Hamish has alerted us to:

Positrons are not typically found in nature since there are highly attracted to electrons where upon contact, both are annihilated to from a pair of gamma ray like photons, (mass to energy). Positron anti-particles are produced through the decay of certain artificially created (by particle accelerators) radioactive isotopes. The unstable property of positrons to annihilate with electrons makes them useful in PET (Positron Emission Tomography) Scanners for �seeing� inside the human body.