PLATINUM
Platinum is considered the most prestigious element .It has been in high demand from the entire world for many years. Its element symbol is (PT) and it was discovered in 1735. It is a transition metal. Platinum is used for such common thing such as jewelry, labortory vessels , nitrogen fertilizers , and motor vehicles . A special use of platinum is electrodes for delivering therapeutic electrical pulses to the skin which is made of platinized thread. You obtain platinum as a byproduct of nickel and copper. After nickel and copper is mined platinum is created . A by product is defined as an incidental or secondary product made in the manufacture or synthesis of something else. Platinum's melting point is almost double that of gold . Also , its resistant to attack from most chemicals. 1 gram of platinum can be made into almost 2km of wire. The last interesting fact is that it takes 8 weeks to refine pure platinum from the ore extracted from the earth. This proves just how rare and special this specific element is.
OXYGEN
Oxygen is one of the most important elements keeping us and the whole world around us alive. The Element symbol is (O) and it was discovered in 1774. It is a non-metal. Common items such as emergency passenger oxygen systems , high pressure portable oxygen tank and of course air are main uses of oxygen. You receive oxygen from the air we all breath in . Oxygen is anywhere and everywhere always surrounding is. An example of a place you can physically buy oxygen is from a scuba diving store in a tank for deep diving. Oxygen comes from greek words oxys and genes which together mean "acid form". Also , over 21% of the earths atmosphere is oxygen. Oxygen accounts for nearly half the mass of the earths crust , two thirds the mass of the human body and 9 10th of the mass of water. From these facts you can clearly understand just how much of a key component oxygen is to our earth.