noun
inert gas
Chemistry term for a gas that does not readily react chemically. Often used interchangeably with 不活性ガス.
See also: 不活性ガス
溶接の際、不活性気体でシールドする。
During welding, shield with an inert gas.
noun
noble gas
Chemistry term for a group of elements (helium, neon, argon, etc.) that are chemically inert. More precisely called 貴ガス, but 不活性気体 is also used.
See also: 貴ガス
不活性気体は周期表の第18族に属する。
Noble gases belong to Group 18 of the periodic table.