Respuesta :
Answer:
C. Â
only one type of atom.
Explanation:
An element is a pure substance made up of only one type of atom. An atom is the smallest particle of an element that still holds the properties of that element.
Elements do not break down during normal laboratory activities, such as when they are heated or exposed to electric currents. They also do not break down when they undergo chemical reactions, such as reactions with acids.