In which of the following pairs of numbers does each member of the pair contain the same number significant figures? same number of significant figures?
0 and 0.0021
128,000 and 0.000790
2400 and 12.02
65.1 and 0.0004

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.