A) Which phrase best describes electronegativity? (1 point)

Question

the relative strength with which an element attracts electrons in a chemical bond
the partial charge an element carries in a covalent or ionic bond
the number of electrons an element has
the number of electrons an element shares in an ionic bond
A)
Use the table to answer the question.
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)
oxygen and phosphorus
nitrogen and oxygen
phosphorus and bromine
bromine and nitrogen

Answer 1

A) The phrase that best describes electronegativity is: the relative strength with which an element attracts electrons in a chemical bond.

Based on the electronegativity values in the table, we can assess which pair of elements would likely form the least polar bonds. The pairs have the following differences in electronegativity:

1. Oxygen (3.5) and Phosphorus (2.1): Difference = 3.5 - 2.1 = 1.4
2. Nitrogen (3.0) and Oxygen (3.5): Difference = 3.5 - 3.0 = 0.5
3. Phosphorus (2.1) and Bromine (2.8): Difference = 2.8 - 2.1 = 0.7
4. Bromine (2.8) and Nitrogen (3.0): Difference = 3.0 - 2.8 = 0.2

The pair with the smallest difference in electronegativity, and therefore would likely form the least polar bonds, is bromine and nitrogen.