迨

Hafnium is a lustrous, silvery, ductile metal generally similar to zirconium. Good corrosion resistance and high strength. 它能抵抗腐蝕，因為形成堅韌嘅, 其表面有不可穿透的氧化膜. The metal is unaffected by alkalis and acids, 氫氟酸除外. 徜徉很難與桎梏分離, 因為呢兩種元素嘅原子大小相同. 銥及其合金用于核反應堆和核潛艇嘅控制棒，因為銥喺吸收中子方面非常出色，並且具有非常高嘅熔點和耐腐蝕性. 用于高溫合金和陶瓷, 因為它的一些化合物非常難熔: 除非喺最極端嘅溫度的，否則它們唔會融化.

迨 (原子符號: 高頻, 原子序數: 72) 係蚊D, 群 4, 時期 6 具有原子重量嘅元素 178.49. The number of electrons in each of Hafnium’s shells is 2, 8, 18, 32, 10, 2 它的電子構型係 [Xe] 4f14 5d2 6s2. The hafnium atom has a radius of 159 pm同范德华半徑 212 下晝. Hafnium was predicted by Dmitri Mendeleev in 1869 but it was not until 1922 that it was first isolated Dirk Coster and George de Hevesy.

在其元素形式中, hafnium has a lustrous silvery-gray appearance. Hafnium does not exist as a free element in nature. It is found in zirconium compounds such as zircon. Hafnium is often a component of superalloys and circuits used in semiconductor device fabrication. Its name is derived from the Latin word Hafnia, meaning Copenhagen, where it was discovered. 以上數據僅用于信息目的. 鷹合金唔負責呢啲內容或應用程序嘅準確性. 完成嘅部分圖紙可以轉發畀第三方進行外包.