Question

which type of bond will most likely be found in hbr given that the electronegativity of hydrogen is 2.20 and the electronegativity of bromine is 2.96?
an ionic bond
a metallic bond
a polar covalent bond
a nonpolar covalent bond

Explanation:

Step1: Calculate electronegativity difference.

Let $\chi_H = 2.20$ and $\chi_{Br}=2.96$. The electronegativity difference $\Delta\chi=\vert\chi_{Br}-\chi_H\vert=\vert2.96 - 2.20\vert= 0.76$.

Step2: Determine bond type based on difference.

Ionic bonds have $\Delta\chi> 1.7$, metallic bonds occur between metals, non - polar covalent bonds have $\Delta\chi<0.5$, and polar covalent bonds have $0.5\leq\Delta\chi\leq1.7$. Since $0.5\leq0.76\leq1.7$, the bond in HBr is a polar covalent bond.

Answer:

a polar covalent bond