Which term designates a good conductor of electricity and heat and includes metals like copper?

Which term designates a good conductor of electricity and heat and includes metals like copper?

• A. Gases
• B. Metalloids
• C. Non-metals
• D. Metals

Answer: (D)

Metals are known for being excellent conductors of electricity and heat because their atoms form a lattice with a sea of delocalized electrons that can move freely. Those free electrons carry electric current and transfer thermal energy quickly, which is why metals like copper are so effective at conducting both electricity and heat. Gases and non-metals generally do not conduct well because their electrons are bound or not arranged to allow easy flow of charge and heat. Metalloids have mixed properties and are not consistently good conductors, unlike metals.

Metals are known for being excellent conductors of electricity and heat because their atoms form a lattice with a sea of delocalized electrons that can move freely. Those free electrons carry electric current and transfer thermal energy quickly, which is why metals like copper are so effective at conducting both electricity and heat.

Gases and non-metals generally do not conduct well because their electrons are bound or not arranged to allow easy flow of charge and heat. Metalloids have mixed properties and are not consistently good conductors, unlike metals.