Which of the following pairs of atoms do not exhibit an ionic bond?
select one: a. cl and alb. cl and bc. ca and fd. rb and s

a. Cl and Al.

Explanation:

Hello,

In this case, considering that the bond's nature is defined by the result of the difference between the electronegativities of the elements constituting the compound, the pair of atoms that do not exhibit an ionic bond is Cl and Al since such difference turns out:

Whose result is not eligible for ionic bond but polar covalent bond as long as ionic bonds are formed when the difference is higher than roughly 1.7.

Best regards.

i wish i could but this one is weird give me abc and i can solve it.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.