Silicon is used in glass and incement. It is also used in solar cells. Solar cells convert the energy of sunlight into electric energy. Germanium is a metalloid used in transistors. Transistors are devices found in many electronic instruments, such as radios and televisions.
Tin is a metal which resists rusting and corrosion.
The most dense element in the carbon family is the metal lead. Lead forms poisonous compounds. The Nitrogen family consists of nitrogen, phosphorus, arsenic, antimony, and bismuth. Nitrogen and phosphorus are nonmetals. Arsenic is a metalloid with mostly nonmetallic properties.