Measuring which physical property is most likely to produce the most precise results when trying to identify a substance?

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.

I’m not sure about this question

Ibelieve it's temperature! i'm not 100% sure.