Compare hydrogen and halogens on the basis of physical state, ion formation ,valency and reaction with oxygen

Compare hydrogen and halogens on the basis of physical state, ion form

1.	Compare hydrogen and halogens on the basis of physical state, ion formation ,valency and reaction with oxygen
Answer» ompare hydrogen and HALOGENS on the basis of physical STATE then both are gas in the basis of information both FORM negative FORMATION of IRON and in the basis of valency both have valency 1 and reaction with oxygen to form water vapour and the reaction is not very harmful