Friday, March 9, 2012

p- block
In p- block elements the last electron enters the outermost p orbital. As we know that the number if p- orbitals is three and therefore the maximum no of electrons that can be accommodated in a set of p orbitals is six. Consequently there are six groups of p- block elements in the periodic table numbering from 13 to 18. Boron, carbon, nitrogen, oxygen, fluorine and helium heads the groups. Their valence shell electron configuration is ns(2) np(1-6) except for helium.
Elements in p- block
The inner core of the...
Friday, March 9, 2012 by Unknown · 0
Friday, February 24, 2012

All the living bodies are composed of several lifeless substances which are present in their cells in a very complex and highly organized form. These are called bio-molecules. Some common examples are carbohydrates, proteins, enzymes, nucleic acids, lipids, amino acids, fats,etc. The molecules combine in specific manner to produce...
Friday, February 24, 2012 by Unknown · 0
Thursday, February 23, 2012

Facebook is one of the most popular social networking site in the modern world. It has more than a million of users. Now a days, a new trend of an empty Facebook status update has been started. Many users of Facebook post empty message on their friends walls so as to irritate them. So as I too. In this post i will show you how to put...
Thursday, February 23, 2012 by Unknown · 0
Tuesday, February 21, 2012

Chemistry plays an important role in our everyday life. Since the beginning of this branch of science, it has been in the service of mankind. Our daily needs of food, clothing, shelter, potable water, medicines, etc. are in one or other manner connected with chemical compound, processes and principles.
We always...
Tuesday, February 21, 2012 by Unknown · 0
This post confirms my ownership of the site and that this site adheresto Google Adsense program policies and Terms andConditions:ca-pub-90641081035956...
by Unknown · 0
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