Saffium

Hafnium is a lustrous, silvery, ductile metal generally similar to zirconium. Good corrosion resistance and high strength. E vorata na yalolailai ena vuku ni kena tauyavutaki e dua na, iyaloyalo ni oxide e tiko e dela ni wai. The metal is unaffected by alkalis and acids, vakavo ga na hydrofluoric acid. E dredre na hafnium me tawasei na mataqali zirconium, baleta ni rua na gacagaca e tautauvata na kena levu. Na Hafnium kei na kena alloys era vakayagataki me lewai kina na ititoko ena nuclear reactors kei na samarini nukilia baleta ni hafnium e vinaka sara ena kena vakaosoosotaki neutrons ka sa dua na vanua cecere ni waicala ka sega ni rawa ni vakasotari. E vakayagataki ena isulu ni katakata kei na seraka, baleta ni so na kena wainimate e refractory: ena sega ni waicala vakavo ga ena batabata kaukauwa duadua.

Saffium (ivakatakarakara ni kaukauwa: TF, naba ni iwiliwili ni kaukauwa: 72) e dua na Buloko D, iLawalawa 4, Gauna 6 ivakatakata ni dua na icolacola ni itaqeti ni 178.49. The number of electrons in each of Hafnium’s shells is 2, 8, 18, 32, 10, 2 kei na kena vakacakacakataki na kena irayaca [Xe] 4f14 5d2 6s2. The hafnium atom has a radius of 159 pm kei na ivakatagedegede e dua na van der Waals mai na 212 ena yakavi. 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.

Ena kena ituvaki duidui, 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. E cake na itukutuku me baleta walega na inaki ni itukutuku. Na Eagle Alloys e sega ni vakadonui me dodonu vinaka na lewe ni itukutuku se kerecuru oqo. Sa rawa me vakau yani ki na dua tale na ikatolu ni kena droinitaki na yava i taudaku ni taudaku (taudaku ni taudaku ni matanavotu).