Three Near Abundant Elements On The Earth

1. OXYGEN.

Oxygen is the kickoff most abundant element on the earth, it occurs inwards nature inwards both costless in addition to combined state. Free oxygen constitutes almost 21% past times book of atmospheric air in addition to almost 33% past times book of dissolved air. In combined state, oxygen employment organisation human relationship for nearly 50% past times majority of earth's crust, the body of body of water in addition to the air. It is acquaint inwards the trioxosilicate(4), trioxocarbonate(4) in addition to oxide of both metallic in addition to Non-metal which brand upwardly stone in addition to clay. Water, 1 of the most abundant chemical compound on earth, is made upwardly of 88.9% oxygen past times mass. The human trunk is made upwardly of almost two-third past times majority of oxygen inwards the combined state.

2. SILICON:

Silicon is the minute most abundant element After oxygen, silicon is a metalloic which belongs to the same grouping inwards the periodic tabular array every bit carbon. It does non occur costless inwards nature precisely is institute inwards the combined patch every bit silicon (4) oxide, SiO2 in addition to trioxosilicate(4). In fact, silicon is minute most abundant chemical element inwards the earth. Silicon is almost 26% past times book of earth's crust, silicon occur inwards a crystalline shape every bit quartz in addition to inwards less pure forms every bit flint, opal, horn-stone in addition to Jasper. It is too the principal element of sand in addition to kieselguhr ( which is a porous cloth formed from the rest of the pocket-size works life organisms known every bit diatoms). Metallic trioxosilicate(4) are institute inwards slate in addition to igneous stone similar granite in addition to basalt, piece clay in addition to kaolin consist mainly of hydrated aluminium trioxosilicate(4).

3. ALUMINIUM:

Aluminium is the third most abundant element afterward oxygen in addition to silicon, existence institute abundantly every bit trioxosilicate (4) inwards stone in addition to clays. The principal source of aluminium is the mineral bauxite, Al2O3.2H2O. Other of import minerals include kaolin Al2O3.2SiO2.2H2O, cryolite, Na3AlF6, corundum, Al2O3, in addition to mica, K2O. Al2O3.6SiO2.,., although aluminium occur in addition to therefore abundantly inwards rocks in addition to clays.