Explain why hydrogen(having valency 1)is placed in group 1(having vale

1.	Explain why hydrogen(having valency 1)is placed in group 1(having valency 1)- alkali metals and not in group 17(having valency 1)- halogens
Answer» ANSWER: hydrogen is PLACED in GROUP 1 because it is the only element which do not FILL any shell

Explain why hydrogen(having valency 1)is placed in group 1(having valency 1)- alkali metals and not in group 17(having valency 1)- halogens

Answer»

hydrogen is PLACED in GROUP 1 because it is the only element which do not FILL any shell