6.022x1023
Helium, argon, and neon are noble gases with different atomic numbers: helium (2), neon (10), and argon (18). They vary in terms of their densities, boiling points, and chemical reactivity. Neon has the lowest boiling point and argon has the highest atomic weight among the three.
Neon atoms are the atoms of the inert, colorless, and odorless gas neon. Neon freezes at -248.59°C, boils at -246.08°C, and has a specific gravity of 0.8999 at 0°C. Neon atoms have 10 electrons, 10 protons, and 10 neutrons. When excited by an electric current, neon glows red and is widely used in advertising signs. It is also used as a refrigerant in cryogenics.
It's the count of one of the subatomic particles in the nucleus, the proton, that is significant in this regard. For example, an atom is hydrogen if and only if it has one proton in its nucleus. It is neon if and only if it has ten protons in its nucleus.
An element's number of protons is the same as its atomic number. Thus, an atom with 21 protons has the atomic number 21. By looking up this element on the periodic table, one finds that it is scandium.
This is an oddly stated question but I would assume you are talking about elements such as neon, argon, xenon, krypton, i.e. noble gases which are monoatomic elements. They are inert gases that, under ordinary circumstances, do not react with other elements to form compounds.
Two moles of neon contain 12,044281714.10e23 atoms.
Neon's atomic # is 10 so it has 10 protons
Neon has 10 protons; the isotope Ne-12 doesn't exist.
10
Neon has 10 electrons.
neon has ten of each.
10 Protons 10 Neutrons in the most common isotope.
0,125 L neon is equivalent to 0,0056 moles.
Neon has 10 protons and 9 neutrons.
The number of protons is equal to atomic number: neon 10 has protons.
Ten protons, ten electrons and 8 neutrons are there in Ne-18.
10