钴 Cobalt
（重定向自Cobolt）
![](/Images/godic/202501/05/Kobalt_electrolytic_and_1cm3_cube3032.jpg")
![](/Images/godic/202501/05/Electron_shell_027_Cobalt_-_no_label.svg3032.png")
钴是一种化学元素，符号为Co，原子序数27，属过渡金属，具有磁性。
钴的英文名称“Cobalt”来自于德文的Kobold，意为「坏精灵」，因为钴矿有毒，矿工、冶炼者常在工作时染病，钴还会污染别的金属，这些不良效果过去都被看作精灵的恶作剧。 钴矿主要为砷化物、氧化物和硫化物。此外，放射性的钴-60可进行癌症治疗。
Cobolt
中文百科
英语百科
Cobalt 钴
（重定向自Cobolt）
![A block of electrolytically refined cobalt (99.9% purity) cut from a large plate](/Images/godic/202501/05/Kobalt_13g3032.jpg")
-chloride-hexahydrate-sample3032.jpg")
![Early Chinese blue and white porcelain, manufactured c. 1335](/Images/godic/202501/05/Early_blue_and_white_ware_circa_1335_Jingdezhen3032.jpg")
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.