Question

oxygen, nitrogen, hydrogen, chlorine and helium please help me to find out odd one out ii am promising to mark your answer brainlest​

Answer 1

Answer:

helium is odd because alien have complete octet and electronic configuration and it has two electron in their outermost shell it is organ gas so it is different from others

you understand this and mark me a brain list

Answer 2

Answer:

Helium is the odd one because it is a noble gas.