Silicone rubber is an elastomer composed of silicone(present in silica) together with carbon,oxygen and hydrogen.
IN 1930, JAMES FRANKLIN HYDE RAN THE FIRST RESEARCH TO PRODUCE COMMERCIAL SILICONES.
Silicon is an element which is present in silica (sand) while silicone rubber is manufactured by extracting silicon from silica and passing it through hydrocarbons. It's then mixed with the other chemicals to create silicone.
A silicone or polysiloxane is a polymer made up of siloxane (−R2Si−O−SiR2−, where R = organic group).