Chemistry

Chemistry

1. elements

   •  element is the substance that atoms all have the same number of protons, In another way of saying this is that all of a particular element's atoms have the same atomic number. 

2. atom

   • Atoms are made up of even the smaller particles called protons, neutrons and even electrons. The protons and neutrons stick together and are able to form the atom’s nucleus, Which is at the center of the atom.

3. matter

   • Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass.