What is an Element and how it different from a Atom?

An atom is a branch off from an element. A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. An element is a basic substance that any be simplified anymore than it is (unless you do what it is made up of in deeper detail).

An element is the matter that is made from only one type of atom. For example, iron is an element because it is only made from iron atom. Water is not an element because it is made from hydrogen and oxygen.

Atom is the smallest particle that builds up the matter. It consists of proton, electron and neutron. For example, iron atom, carbon atom, helium atom, etc.