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 substance that cannot be broken down is a pure substance
oxygen is an example of a pure substance because a pure substance is made up of one kind of matter and it cannot be broken down into smaller parts.
A pure substance that cannot be chemically broken down into simpler substances.
Carbon into carbon monoxide and carbon dioxide
No.An elementcan't be broken down into a simpler substance, without changing its chemical nature.
A chemical element.
A pure substance that cannot be broken down is an Element.
Not: atoms The answer is an element
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
an element
Sodium is a pure substance because it is an element and can not be broken down into anything else
Sodium is a pure substance because it is an element and can not be broken down into anything else
pure substance, unable to be broken down
into smallest partical
An element.
I believe that is an element.
A substance that cannot be broken down is a pure substance