In: Chemistry
What is the polarity of a Na-Br bond?
nonpolar covalent
definitely polar covalent
likely ionic
slightly polar covalent
slightly ionic
Correct option: likely ionic
Electronegativity of Na on Pauling scale = 0.93
Electronegativity of Br on Pauling scale = 2.96
Difference in electronegativity = (2.96 - 0.93) = 2.03
If the electronegativity difference between atoms participating in a bond is more than 1.8, then such bond is called ionic bond. Hence the polarity of the bond is ionic.