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Chemical Bonding and Molecular Structure
Explain with the help of suitable example polar covalent bond.
If two different atoms are linked to each other by a covalent bond,then the shared electron pair will not lie in the centre because the bonding atoms differ in electronegativities.Such a bond is called as polar covalent bond.For in NaCl , chlorine is more electronegative than sodium. Hence it will have more control over the shared pair of electrons & will develop a partial negative charge & sodium will acquire partial positive charge & a polar covalent bond is formed. Greater the difference in electronegativity of bonding atoms more will be the polarity of the bond.
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Why two helium atoms do not combine to form He2?
What are 'Lewis structures'?
Name the conditions for the formation of an ionic bond between two atoms.
What is crystal lattice?
What is electrovalency?
What bond is present in MgCl2 molecules?
Two elements A and B have the electronic configuration as:
A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.
What type of bonding would you expect between:
(i) a metal and a non-metal
(ii) a non-metal and another non-metal?
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