Question

a chemical bond is considered polar when the value of the electronegativity difference falls between__and__; nonpolar when the value is less than__.​

Answer 1

Answer;

0.5 and 1.6

0.5

A chemical bond is considered polar when the value of the electronegativity difference falls between 0.5 and 1.6 ; nonpolar when the value is less than 0.5.

Explanation;

• Nonpolar Covalent is a type of bond occurs when there is equal sharing  of the electrons in the bond. For example in molecules such as Cl2, H2 and F2.
• Polar Covalent is a type of bond occurs when there is unequal sharing between the two atoms, of the electrons in the bond. For examples in molecules such as; NH3 and H2O.
• If the electronegativity difference between the atoms involeved in bond formation is less than 0.5, then the bond is nonpolar covalent.
• While, If the electronegativity difference is between 0.5 and 1.6, then the bond is considered polar covalent
• But when the electronegativity difference is greater than 2.0, then the bond is ionic