cannot be broken down into simpler substances by chemical means
An element - substance - NOT a mixture.
Yes, an element is a pure substance. An element is composed of only one type of atom. There are no other substances in it. So an element is a pure substance.
a mixture
When all atoms in a substance are alike, the substance is an element. Each element is composed of atoms that have the same number of protons in their nucleus.
its a element
Yes. Gold is both a pure substance and an element.
That is an element.
A substance in which all atoms are identical is called an element.
an element.
What type of substance is always made up of a single type of atom?
subtrate
Sodium is an ELEMENT, a pure substance. As a pure substance there is nothing else with it.