No element is monoatomic in solid or liquid form- this true?

If this statement is true then does that mean that single atoms of any element cannot exist in nature in solid or liquid form?No element is monoatomic in solid or liquid form- this true?
Two separate questions. Liquid mercury, for example, contains mercury atoms that are not bonded to each other and are therefore monatomic. Most metals are also monatomic in solid and liquid state, because heating them will cause them to separate (therefore they have a physical and not a chemical bond). However, ';liquid'; and ';solid'; refer to the interactions between atoms, so you cannot talk about the ';form'; of a single atom because without other atoms to interact with, there is no meaning to the ';liquid'; or ';solid'; terms.No element is monoatomic in solid or liquid form- this true?
Mono-atomic substances do exist, but cannot take a form of matter such as a solid or liquid, instead they exist as an form of a mixture with the other substance taking the form of matter. To take a form of matter would require the mono-atomic particle to give up its mono-atomic state and form bonds with other materials, and thus would then become a molecule.
yes because one atom cannot have a ';state of matter'; because a state of matter irs reletive depending on the atoms around it
Yes and no. Yes at stp but at high altitude radiation can knock one loose to form an ion of a highly excited state.

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