Atomic Number. :)
Argon is an element and all the atoms in argon are argon atoms.
Yes
Yes
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
There is one atom in argon. Argon is a "noble gas", which means that it occurs independently. This is true for all of the atoms on the final column of the periodic table. http://en.wikipedia.org/wiki/Noble_gas
Argon is an element and all the atoms in argon are argon atoms.
Yes
Yes
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
Avogadro's number is is 6.0221409 *10^23. It is the same number for all atoms or molecules.
There is one atom in argon. Argon is a "noble gas", which means that it occurs independently. This is true for all of the atoms on the final column of the periodic table. http://en.wikipedia.org/wiki/Noble_gas
1.7x10^-18
2.3 × 1024 atoms of Ar
atoms of argon are heavier than atoms of nitrogen
2.3 × 1024 atoms of Ar
They have the same mass.
They have the same mass.