This is an atom.
If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
All of the elements of the Periodic Table cannot be broken down into simpler substances.
An element is a substance that cannot be broken down into simpler substances through chemical reactions.
Not: atoms The answer is an element
An example of a material that cannot be broken down into simpler substances is an element like gold or oxygen. Elements are composed of one type of atom and cannot be chemically broken down into simpler substances through ordinary chemical reactions.
An element cannot be broken down into a simpler substance by chemical means.
A pure substance that cannot be broken down is an Element.
A substance that cannot be broken down is a pure substance
An element is the only substance that cannot be broken down.
element
T=It is true that compounds is a type of substance. This substance cannot be broken down.
molecule
No. Elements cannot be broken down into simpler substances in a chemical reaction.
No, it can be broken down.
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
an element is a substance that cannot be broken down into a simpler form by chemical means
element