What is higogen?

Answer 1

Its Halogen or something else. If it is Halogen then It is defined as :

any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the Periodic Table. They are reactive non-metallic elements which form strongly acidic compounds with hydrogen from which simple salts can be made.

Answer 2

in the pereotic table hygergen is flamilbe