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)
bromine and nitrogen
nitrogen and oxygen
phosphorus and bromine
oxygen and phosphorus

Explanation:

Step1: Recall bond - polarity rule

The polarity of a bond depends on the electronegativity difference ($\Delta$EN) between the two atoms. The smaller the $\Delta$EN, the less polar the bond.

Step2: Calculate $\Delta$EN for bromine and nitrogen

$\Delta$EN$_{Br - N}=|2.8 - 3.0| = 0.2$

Step3: Calculate $\Delta$EN for nitrogen and oxygen

$\Delta$EN$_{N - O}=|3.0 - 3.5| = 0.5$

Step4: Calculate $\Delta$EN for phosphorus and bromine

$\Delta$EN$_{P - Br}=|2.1 - 2.8| = 0.7$

Step5: Calculate $\Delta$EN for oxygen and phosphorus

$\Delta$EN$_{O - P}=|3.5 - 2.1| = 1.4$

Answer:

bromine and nitrogen