About the accents: This is not a mistake, it is on purpose. Please note that in Spanish some words have accents when asked in a question (I.e que, porque, qui...). Pay attention to the question mark. Most common translations: Fachzeitschrift EselsbrÃ¼cke Erfassung Enklave Eitelkeit Eingeweihte Eck Drittel Dissident Detail
Krypton belongs to the family known as the noble gases. This family also includes helium, neon, argon, xenon and radon. All are considered nonreactive, nonmetallic elements and have eight valence electrons.
Argon and krypton - I've just got to unstick these from the anchorage... Argon and krypton are both heavier than air. And xeon, xeon is the heaviest of the lot, you've heard of a lead balloon, well this is it. The noble gases, in order of their density, are helium, neon, argon, krypton, xenon and radon. They are called noble gases because they are so majestic that, in general, they donât react with anything.