A. All are non-metals
B. All the halogens have electronic configuration ns2p5
C. They have high electron affinity and ionization energy
D. All the halogens react with noble gases to form their halides
¨ Noble gases, such as helium, neon, and argon, are very unreactive and generally do not form chemical compounds with other elements, including halogens. Therefore, it is not correct to state that all the halogens react with noble gases to form their halides.
Submitted by :- Jamil Ahmed