Question

Dissimilarities between Hydrogen and Halogens.

Answer 1

1)Halogen has 1e- in valence shell while halogens have 7e- in valence shell.

2)Electronic configuration of H=1s1 and of halogen ns2,ns5

3)Unlike X- ion is unstable in water and reacts in following manner:-
H- + H20 ---->H2 + OH-

Answer 2

Answer:

hydrogen has one electron in its outermost shell why does halogen have 7 electrons in their outermost shell