No, a single atom would have to belong to a particular element.
A compound must contain two or more different types of atom that are chemically bonded (either covalently or ionically) together.
there is only one atom of each element
there is only one atom of each element
there is only one atom of each element
there is only one atom of each element
No. Mercury is an element, therefore it can exist as a single atom and does not contain any other atoms or compounds. It's elemental symbol is Hg.
This molecule contain only one atom from each component.
An atom
Any compound MUST be made up of atoms of more that one type - otherwise they are not compounds. The only common characteristic of organic compounds is that they contain atoms of carbon, but a lump of pure carbon need not be organic.
To the extent the question makes any sense (i.e. very little): no.Crystals of both ionic and covalent compounds exist.
Neon primarily forms compounds with fluorine, such as neon difluoride (NeF2). These compounds are unstable and typically only exist at very low temperatures and high pressures. Neon does not readily form compounds with other elements due to its inert nature.
Covalent bond can exist in any type of compounds.
Yes, besides elements and compounds, matter can exist in form of mixtures.