In pure form.
Xenon is found as a gas
It is a compound
?
helium doesn't form any compound
Usually it is found in compound form but can easily as a pure element, just depends on the conditions
Sulfur can form ionic compounds (eg SO2), but Xenon is a noble gas and does not react to form compounds.
Xe is the element xenon, which is a single element, not a compound. A compound, by definition is composed of two or more elements. Xenon rarely forms compounds at all, but in fact it can combine with some other elements such as fluorine.
No. Traces of Xenon are also found in covalent boded form with oxygen, in quartz.
Calcium is never found in its elemental form in nature.
Xenon is an element. It is mostly found in atomic form but can exist as a diatomic molecule.
For example, xenon, a noble gas can form stable compounds.
Xenon is a noble gas in with the electrone of outermost orbit are balanced than the xenon cannot make ionic bond with another element such as Oxygen because if it make an ionic bond than the electron of the outer most orbit are unstable therefore it make an covalent bond with oxygen to fill the outer most unbalance electron of oxygen by sharing electron to form (xenon oxide) (xenon dioxide) and also with floride to form (xenon difloride) etc.