Copper is deposited when a current of 3.00 A flows for 485 seconds through a cell composed of two Pt electrodes in a solution of Cu(NO3)2 in dilute HNO3. If 0.36 g of copper is obtained calculate the current efficiency for depositing copper.

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.