Polar bond and non polar bond explian them? ex
Answers
Answer:
For a bond to be polar, the electronegativity difference between the two elements needs to be between 0.5 to 1.6. If the electronegativity difference is less than 0.5, the bond is nonpolar. ... For example: fluorine, the most electronegative element of them all, has a electronegativity number of 4.0.
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Answer:
Polar Covalent Bond
A bond between 2 nonmetal atoms that have different electronegativities and therefore have unequal sharing of the bonding electron pair
Example: In H-Cl, the electronegativity of the Cl atom is 3.0, while that of the H atom is 2.1
The result is a bond where the electron pair is displaced toward the more electronegative atom. This atom then obtains a partial-negative charge while the less electronegative atom has a partial-positive charge.This separation of charge or bond dipole can be illustrated using an arrow with the arrowhead directed toward the more electronegative atom.
The Greek letter delta indicates "partially".
Within a molecule each polar bond has a bond dipole
A polar molecule always contains polar bonds, but some molecules with polar bonds are non polar
Nonpolar Covalent Bond
A bond between 2 nonmetal atoms that have the same electronegativity and therefore have equal sharing of the bonding electron pair
Example: In H-H each H atom has an electronegativity value of 2.1, therefore the covalent bond between them is considered nonpolar