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Hello Friends or User,
I am Lovepreet singh with age 19year old.I am studying in diploma in civil eng..I have start blogging about Study due to the facing problem on my friends.Due to lack of study materials,all of my best friends cannot afford this books.So, I start blogging for my friends to make better future in life(study).

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Division of elements of four blocks(s,p,d and f blocks)

The elements in the long from of the periodic table can be divided into four main blocks i.e., s,p,d and f blocks respectively. 1). s-block elements :  The elements in which the last electron enters the s-orbital of their outermost energy level are called s-block elements. This block constitute elements of groups 1 and 2 having the general outer shell electronic configuration as ns1 and ns2 respectively. The elements corresponding to ns1 configurations are called alkali metals while those corresponding to ns2 configurations are called alkaline metals.Thus, the general electronic configuration of s-block elements may be expressed as ns1or2. General characteristics of s-block elements: With the exception of hydrogen,the general characteristics of s-block elements are: (1) They are soft metals having low melting and boiling points. (2) They are highly reactive and reactive and readily from univalent or bivalent positive ions by losing the valence electron. (3) They have low...
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