select the correct answer. which of these elements is unlikely to have a reaction with any element or…

select the correct answer. which of these elements is unlikely to have a reaction with any element or compound? a. rubidium (rb) b. magnesium (mg) c. cobalt (co) d. argon (ar)

select the correct answer. which of these elements is unlikely to have a reaction with any element or compound? a. rubidium (rb) b. magnesium (mg) c. cobalt (co) d. argon (ar)

Answer

Brief Explanations:

Argon is a noble - gas. Noble gases have a full outer electron shell, making them very stable and less likely to react with other elements or compounds. Rubidium is an alkali metal, magnesium is an alkaline - earth metal, and cobalt is a transition metal, all of which are more reactive than noble gases.

Answer:

D. argon (Ar)