Nickel has an atomic number of 28. It has 28 protons. The atomic weight of nickel is 58.69, and the chemical symbol is Ni. Nickel is magnetic and does not rust very easily. Nickel is a silver white metal. It is used for many industries like electronics, electroforming and automotive markets. Various benefits of nickel include wear resistance, lubricity, tarnish protection, decorative appearance, surface hardness and corrosion protection. Nickel which is used for engineering purposes is often smooth and dull grey in appearance. These nickel deposits are used for wear resistance, hardness, lubricity and magnetic purposes. Nickel plating chemicals and electro less nickel plating chemicals are available in bright, ultra bright and semi bright. Some products that have nickel in it are rechargeable batteries, coins, welding rods and wires, electronic or computer equipment, and pigments for paints or ceramics, jewellery, kitchen tools and coins. The largest use of nickel is to cast iron and steel. Many manufacturers use nickel combined with steel alloy to make parts for machines.