Question

Read the list of elements given below.

F, Cl, Br, I

Which of the following about the elements is true?

A. All of them are highly reactive metals

B. All of them are highly reactive nonmetals

C. F and Cl are reactive nonmetals and Br and I are highly reactive metals

D. F and Cl are reactive metals and Br and I are highly reactive nonmetals​

Answer 1

Well, none of these elements is a metal, so any answer choice that classifies any of the elements as being a metal is automatically wrong. That would eliminate A, C, and D.

It is, in fact, true that the elements given (known as halogens) are nonmetals that also happen to be highly reactive. So, B would be the correct answer.