Why would a percent yield be less than 100%? give a reason

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.

Deposition is the transition of matter going from gas to solid without passing through the liquid phase.a.) gas—-> solid