Question

use the table to answer the question.
elements with their
electronegativity
element electronegativity
bromine 2.8
oxygen 3.5
nitrogen 3.0
phosphorus 2.1
based on the information in the table, which pair of elements would likely form the least polar bonds with each other?
(1 point)
nitrogen and oxygen
oxygen and phosphorus
bromine and nitrogen
phosphorus and bromine

Explanation:

Step1: Calculate electronegativity differences

• For nitrogen ($N$, $3.0$) and oxygen ($O$, $3.5$): $\vert3.5 - 3.0\vert= 0.5$
• For oxygen ($O$, $3.5$) and phosphorus ($P$, $2.1$): $\vert3.5 - 2.1\vert = 1.4$
• For bromine ($Br$, $2.8$) and nitrogen ($N$, $3.0$): $\vert3.0 - 2.8\vert=0.2$
• For phosphorus ($P$, $2.1$) and bromine ($Br$, $2.8$): $\vert2.8 - 2.1\vert = 0.7$

Step2: Determine the least polar bond

The bond with the smallest electronegativity difference is the least polar. Among the calculated differences ($0.5$, $1.4$, $0.2$, $0.7$), the smallest is $0.2$ (bromine and nitrogen).

Answer:

C. bromine and nitrogen