Home Preparation for National Talent Search Examination (NTSE)/ Olympiad
Chapter : 2. Is Matter Around Us Pure
Pure Substances
(A) Elements : An element is a substance which cannot be split up into two or more simpler substances by the usual chemical methods of applying heat, light or electric energy. An element cannot be split up into two (or more) simpler substances because it is made of only one kind of atoms. Example. Hydrogen is an element because it cannot be split up into two or more simpler substances by the usual methods of carrying out chemical reactions by applying heat, light or electricity. Element - Symbol Aluminium - Al Arsenic - As Barium - Ba Bromine - Br Cadmium - Cd Calcium - Ca Chlorine - Cl Chromium - Cr Cobalt - Co Fluorine - F Hydrogen - H Iodine - I Magnesium - Mg Manganese - Mn Nitrogen - N Oxygen - O Phosphorus - P Sulphur - S Uranium - U Zinc - Zn
(Symbols From Latin Names) Antimony (stibium) - Sb Copper (Cuprum) - Cu Gold (Aurum) - Au Iron (Ferrum) - Fe Lead (Plumbum) - Pb Mercury (Hydrogyrum) - Hg Potassium (Kalium) - K Silver (Argentum) - Ag Sodium (Natrium) - Na Tin (Stannum) - Sn