Question

.This is a substance that cannot be broken down further by chemical means. Example: sodium, tungsten, iodine

Answer 1

Answer:

Material composed of only one kind of matter throughout (same atoms or same molecules) ELEMENT: A substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen.

Answer 2

pure substance that cannot be broken down into simpler substances by chemical or physical means. Each element has unique physical and chemical properties. compound. a pure substance made up of atoms of 2 or more different elements joined together by chemical bonds.