氪者，洋謂Krypton，化學元素也，符號Kr，原子序三十六，屬稀有氣體。無色，通電呈白。
性
無毒，然可致窒息。[一]
同位素
同位素者三十二，自氪六九至氪一百。性穩者有五，曰氪八十，曰氪八十二，曰氪八十三，曰氪八十四，曰氪八十六。
得
用
- 可充電燈泡，以延鎢絲之命。
據
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