A full list can be found in the link under "Sources and related links" below this answer.
Argon is an element and all the atoms in argon are argon atoms.
A hydrocarbon with all the hydrogen atoms replaced with either chlorine atoms or fluorine atoms. They cannot be all chlorine or all fluorine atoms, but must be some mixture.
In a solid atoms do not move at all, but they can vibrate.
A substance in which all atoms are alike is an element.
No, all Atoms are totally different from one another.
Isotopes are atoms of the same element with varying number of neutrons. Thus, not all atoms are the same.
Yes, all matter has atoms
All atoms have atomic numbers which are the same and the atoms have the same number of electrons.
All elements have atoms, but most do not form molecules.
All Substances are built from Atoms
Yes, all matter contains atoms.
All molecules are made up of atoms.