Question

Check all the characteristics below that describe elements. one type of atom a pure substance more than one type of atom chemically combined elements

Answer 1

one type of atom

a pure substance

Step-by-step explanation:

Correct answer

Answer 2

one type of atom; a pure substance

Step-by-step explanation:

An element is defined as a pure substance. Each element is made of one type of particle only which can be an atom or a molecule.

Example: Copper (Cu), gold (Au), oxygen (O), hydrogen (H), etc. All these elements are made of a single type of atom only.