Which of these are families of elements?
metals and noble gases
shells and nonmetals
properties and rare earth elements
metalloids and atoms
metals and noble gases answer
The families of the elements are determined depending on their properties. There are metals, nonmetals, and the metalloids. The nonmetals are also further classified depending on their properties. There are those that are Halogens, Noble Gases, etc. The answer to the question is letter A. metals and noble gases.