Through hypothesis and experiments
Dimitri Mendeleev was inspired primarily by the work of Antoine Lavoisier and his work on writing the first extensive list of known elements. Lavoisier also collaborated in the construction of the metric system and worked to develop a better nomenclature for chemical compounds which parts are still used today.
Niterogen if I’m wrong please correct me
Location,types that is your answer for this one hope i helped
Answer:
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