Simple chemistry question

[Urban_Squrill]

This just proves that I should not of taken chemistry.

What is the number of subatomic particals for Antimony or Sb?

electrions
protons
nutrons


Blah I am dumb.

[RedFury]

Other than the fact that I know it is
Electrons
Protons
and
Neutrons..

chemistry scares me

<---staying outta this thread now

[emcron]

Just do a search on google and you can get a ton of periodic tables or you could just go here

It has an atomic number of 51 so it has 51 protons and 51 electrons. The to find the number of neutrons just subtract that number from the atomic weight.

[Urban_Squrill]

thankz

[osprey4]

You'll notice the atomic weight is not a whole number. This means the atom has different nuclides, each with a different number of neutrons. The most stable nuclide has an atomic weight of 122, but there are many.

[Theophylact]

That's not the only reason.

Fluorine has only one stable isotope, fluorine-19 (9 protons, 10 neutrons); but its atomic weight is 18.9984 relative to carbon-12 (which is defined as 12.000 exactly). The difference is the mass equivalent of the binding energy.

A [free] neutron weighs slightly more than a proton plus an electron; when it decays to those (plus an electron neutrino, essentially massless), the mass difference shows up as energy release.

[osprey4]

Nice job. Our lab does mostly chromatography so my recollection of some of these things is a bit dusty.