If you find an element in nature in its pure elemental state, what can you infer about the element's chemical reactivity?
I can say that- The element found is not very reactive.
I an element is found in nature in its pure elemental state then the the element found is not very reactive.
There are many elements which are not much reactive. such as in metals- Ag, Au, Hg, Cu etc. and in Non metals- O2, N2, Inert gases etc.
For checking its chemical properties you will have to examine it with O2 or C-12.