Which scientific term best matches this description: Smallest unit of an element that retains the element’s chemical characteristics?

A) atom

B) element

C) helium

D) hydrogen

Answer: A

Explanation: The smallest unit of an element that retains the element's chemical characteristics. An atom consists of a central nucleus containing one or more positively charged protons and uncharged neutrons (except for hydrogen, which may have no neutrons) orbited by one or more negatively charged electrons.

Scroll to Top