combined form
Chlorine is not found in the nature in his elemental form.
Platinum is found in the nature in elemental form.
Calcium is never found in its elemental form in nature.
In a liquid elemental state or as an element contained in certain minerals.
Because Xenon is a gas and gases are found uncombined in nature, Xenon is found uncombined.ct
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Zinc is usually combined with other elements.
Helium has completely filled orbitals. hence it is chemically inert (non reactive) and is found in its pure elemental form.
Occasionally as elemental copper but more often as a sulfide or an oxide.
Yes, in fact 78% of earth's atmosphere is elemental nitrogen.
All the chemical elements from group I and II are very reactive; it is impossible to found these elements in nature in elemental state.
The alkali metals are all very recative and are not found free in nature (pure elemental form) but are always found as compounds. (minerals)