Chemistry
Grade-9
Easy

Question

Which chemical family is highly reactive and exists in all three states of matter at room temperature?

  1. Noble gasses
  2. Halogens
  3. Radioactive elements
  4. Metalloids

hintHint:

Halogens 

The correct answer is: Halogens


    Halogens are highly reactive and exist in all three states of matter at room temperature as they are the most electronegative element of each period of the atomic table.