(bound form) fluorine; the chemical element with atomic number 9, which is a highly reactive and toxic gas

Suffix appearing after nouns or adjectives that expresses a transformation into a certain state or quality, meaning "-ize" or "-ization"

the chemical element hydrogen, a colorless, odorless, and tasteless gas that is the lightest of all known substances; usually referred to as 氢气 qīng​qì