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1 day ago · Noble gas is translated from the German noun Edelgas, first used in 1900 by Hugo Erdmann [ 5 ] to indicate their extremely low level of reactivity. The name makes an analogy to the term " noble metals ", which also have low reactivity. The noble gases have also been referred to as inert gases, but this label is deprecated as many noble gas ...
- VIIIA
- helium group orneon group
- 4.20-4.90
- noble gases
7 hours ago · Learn More. Yellowstone Forever 2026 Calendar – Call for Submissions. Yellowstone Forever, Yellowstone National Park’s official nonprofit partner, invites you to submit images to be considered for our Yellowstone Forever 2026 Wall Calendar!