Question

Which of the following statements are correct for all three halogens (X), Cl, Br and I ?

• A. They all need to gain one electron to acquire stable configuration.
• B. They all form strong acid of the type HX.
• C. Both (A) and (B) are correct.
• D. None of the above is correct.

Answer 1

Answer: (C)

Both (A) and (B) are correct.

Halogens have $n{p}^5$ configuration and they need one electron to acquire to attain noble gas configuration. All halogens form strong acid of type HX.