What Are Metals? What Is The Importance Of Metals In Our Life ?

" Elements whose atoms have a small numbers of electrons in the outermost shell and have tendency to form positive ions in chemical reactions by losing electrons are called metals."
         Most of the metals have one or tow electrons in their outermost shell . Except a few , they exist as solids at room temperature. They show a shiny lustre. They are malleable and ductile and are good conductors of heat and electricity. Usually, they have high melting and boiling points. About do of the elements are metals. Metals are found on the left side of the periodic table. Metals in the form of minerals constitute about 25 % of earth's crust. Chemically less reactive metals occur in nature in free state while more reactive metals are found in form of compounds such as oxides, sulphides, halides, carbohydrates and sulphates.  
            Importance of metals:
                    Various articles of daily life are made from metals. Metals are commercially used for manufacture of ships, aero planes, motor cars and various industrial machines. Iron bars are used in the construction of buildings. Metal wires of pure copper and aluminum are used for the supply of electricity. Lead is used for water pipes. Aluminum is used in alloys for manufacturing of different parts of ships and aero planes and different heavy machinery.

Many things around us are made of Materials , such as wood, plastic, metal or paper.these things are really important in our life,We use all of them in our daily life.