what is an element chemistry
An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world.Examples of elements include iron, oxygen, hydrogen, gold, and helium.Atomic Number. An important number in an element is the atomic number.n element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world. Examples of elements include iron, oxygen, hydrogen, gold, and helium. Atomic Number.