A polar covalent bond will be formed in which one of these pair of atoms:
H2
Cl2
HF
N2
Greater the difference in the electronegativity of the atoms forming the bond, greater will be the polarity of the bond.
How many covalent bonds are formed in Cl2, O2 and N2 molecules?
In case of non-polar covalent bond, the covalent bond is formed in the ___ of atoms and shared electrons are ___ distributed.
Complete the following :
(a) When the nuclei of two different reacting atoms are of ......... mass, then a bond so formed is called ...................... covalent bond (equal, unequal, polar, non-polar).
(b) In case of non-polar covalent bond, the covalent bond is formed in the .......... of atoms and shared electrons are ........... distributed (corner, middle, equally, unequally)
(c) The ions in ................ compounds are held very strongly due to strong ............ forces (electrovalent, covalent, electromagnetic, electrostatic).