It can be either, depending on the case.
I think that its a compound.
A compound is more that one element (an element is a single atom of a substance ie H hydrogen ) a compound is still considered to be a pure substance
A pure substance is an element or a compound.
It is an element.
A term used to describe any element or compound is called a substance or substances.
A substance that cannot be broken down is a pure substance
no, an element
It depends on the substance your are talking about. It could be a compound, mixture, or substance; depending on the substance. If it is an element off the periodic table, it is an element. If it is two elements chemmically combined, it is a compound. If it is two elements that are not chemically combined, it is a mixture.
"Compound" means that the substance is made up of more than just one element.
it is a compound, an element is a substance which can not be broken down into anything else through chemical processes
Sodium is an element on the periodic table, and is NOT a compound.
Pure sugar is a substance (compound).