Question

Which of the following describes the halogen element ?

• A. They are monoatomic and form ion of the type $X^{-}$
• B. They are diatomic and form ion of the type $X^{+}$
• C. They are diatomic and form ion of the type $X^{-}$
• D. They are polyatomic and form ion of the type $X^{-}$

Answer 1

Answer: (C)

Halogens are diatomic molecule $(X_2)$ in the element state and form ion of the type $X^{-}$.