atom
An element is a substance made of only one kind of atom. Each element has a unique atomic number, which represents the number of protons in its nucleus. Examples of elements include oxygen, gold, and carbon.
Element
an element or a molecule
An element.
This is an isotope of a chemical element.
An element contains no protiens. An element is made of only one type of atom. Protiens are made up of elements.
An element is made up of one kind of atoms
Because it is made out of only one kind of element (called neon).
element
element!
Element
A substance made up of only one kind of atom is an element.