Wednesday, February 6, 2013

Carbon's position in the periodic table

Introduction :
Carbon is the element which is very important from the ancient times. It was found in the form of soot and charcoal and etc. It is also found in nature in various forms like petroleum, coal and CaCl2 and magnesium carbonate. Carbon is also found in most of the foods which we used to daily in real life.

Carbon element is very reactive and found in both states i.e. in Free State and combined states. It is found in both forms such as amorphous and crystalline in Free State. Most common crystalline forms of carbon exist in nature are graphite and diamond. In the nature, the amorphous form of carbon does not exist. This amorphous form is made from organic material while some are manmade. This form is present as carbon dioxide present in air, coal, hydrocarbons like methane, natural gas etc, and proteins, carbohydrates and vitamins in the living organisms.

Carbon in Periodic Table:

The symbol of carbon element is C. It has atomic number of 6 having mass number 12. The three isotopes of carbon are:
12C6, 13C6 and 14C6
  1. The first element of IV A group is Carbon.
possition of carbon in table

Properties of Carbon due to Ots Position in the Periodic Table:

The electronic configuration of IVA group shows that the members of this group have four electrons in the outer orbit.

Apart from carbon element, there are four other elements present in this group. They are silicon (Si), germanium (Ge), tin (Sn) and lead (Pb).

As we know, the carbon is  non-metal in nature. However if we go down in group IV A, the metallic character of this group’s elements increases.

Thus we can say that C and Si are non metals. Ge is metalloids and Sn, Pb are metals.

The elements of IV A group also have allotropy forms. For example carbon is found as graphite, diamond and coal etc.

The most important property of carbon is that it can form bonds with carbon itself which create the chain of carbon. This characteristic or property is termed as catenation. The carbon is the element which shows maximum catenation. Silicon shows this property to little extent and other elements of this group do not have catenation.

Likewise silicon exists as amorphous and crystalline forms.

The element carbon has tetra valency. With monovalent atoms, carbon can forms four single bonds.  For example: CCl4

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