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properties of p block elements?

6 years ago


Answers : (2)


Dear ankit,

They have variable oxidation states.
They form acidic oxides
They impart no characteristic colour to the flame
Generally they form covalent  compounds. Halogens form salts with alkali metals 
They have high ionization potentials.
They have very large electron gain enthalpies.
They are solids/liquids/gases at room temperature (Br is liquid)
The aqueous solutions their oxides are acidic in nature.


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Sagar Singh

B.Tech IIT Delhi

6 years ago

These elements which have only one shell is incomplete ,they known as p-block elements. Properties of p-block elements are given below :-                                                                                                                                                                              a) Size of atom----  Size of an atom of p-block elements decreases on moving from left to right in a period while the same increases on descending a group.As already said the size of an ion is expressed as ionic radius.                                                                                                                                                                        b) Electronegativity---- Since the electro positive character of p-block elements decreases on moving in a period and increases down the group,electronegativity which is opposite of electropositive character will show opposite periodic variation that is the electronegativity of p-block elements decreases down the group and increases in a period .

6 years ago

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