an element
An element.
I believe that is an element.
a pure substance is made up of only one type of atom. atoms can't be broken down (divided) definition of an atom: that which cannot be divided. there ya go! ur welcome :) -shamansh
A chemical element.
A pure substance that cannot be broken down is an Element.
Copper is an element and can not be broken down to a simpler substance.
An element cannot be broken down into a simpler substance by chemical means.
No.An elementcan't be broken down into a simpler substance, without changing its chemical nature.
A substance that cannot be broken down is a pure substance
Elements are substances that coonono be broken down in a garbage disposal.
An element is the only substance that cannot be broken down.
No, it can be broken down.