Element,Compound,Mixture

a compound is a substances that result from combination of two or more different chemicals elements in such way that the atoms of the different elements are held together by chemical bonds that are diffcult to break.

a mixture is a substance that is made up of two or more different materials in such ways that no chemical can occur

a element is a substance that is made entirely from one type of atom for example the element hydrogen is made from atoms containing a single proton and ekectron .