Identify each element as a metal, metalloid, or nonmetal. a. gold b. silicon c. manganese d. sulfur e. barium

Gold, Manganese and Barium are metal, as these are solids, shiny, ductile and malleable.

Sulrfer is non metal as it is not malleable, somewhat brittle, bad conductors of electricity and heat, and it gets electrons in chemical reaction.

Silicon is metalloid as its properties lie midway between metals and non metals. Silicon is used as semi-conductor which is very important in computer chip industry because of metalloid properties.