what are substances that cannot be broken down into simpler substances?\no elements\no protons\no…

what are substances that cannot be broken down into simpler substances?\no elements\no protons\no molecules\no compounds

what are substances that cannot be broken down into simpler substances?\no elements\no protons\no molecules\no compounds

Answer

Brief Explanations:

Elements are substances that cannot be broken down into simpler substances by chemical means. Protons are sub - atomic particles, molecules are made up of atoms, and compounds are made up of two or more different elements chemically combined.

Answer:

elements