Plzzz fas answerrr Which answer choices correctly describe why the number of known elements more then doubled by 1861

Yes you are correct use the scientific method

The teacher is mostly talking about the distillation of a mixture

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

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