出典:Wiktionary
出典:『Wiktionary』 (2026/04/25 02:39 UTC 版)
| Chemical element |
|---|
| Kr Atomic number 36 krypton |
| Previous: ← bromine (Br) |
| Next: rubidium (Rb) → |
| English Wikipedia article on Krypton |
From Ancient Greek κρυπτός (kruptós, “hidden”) + -on, used for all noble gases.
krypton (countable and uncountable, plural kryptons)