Adevice used to measure the pressure of an enclosed gas is a manometer barometer thermometer seismometer

Manometer is the device used to measured the pressure of an enclosed gas

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.