Tamanna

                                 Platinum - What's This?
Platinum is a grayish-white, metallic color exhibited some 'between the nickel and silver. Platinum has an atomic weight of 195.23, which gives a density almost equal to gold. This means that it is very heavy, it takes a lot of space. Its symbol is PT and the scientific atomic atomic number is 78 In its purest form, it is harder than gold and silver. Jewelry, usually 5% of other metals, platinum is added to make the dough soft enough to set precious stones firmly in jewelry settings.