Tantal
73
Ta
Guruh
5
Davr
6
Blok
d
Protonlar
Elektronlar
Neytronlar
73
73
108
Umumiy xususiyatlar
Atom raqami
73
Atom massasi
180,94788
Mass raqami
181
Turkum
Oʻtish metallar
Ranggi
Kulrang
Radioaktivlik
Yoʻq
Named after Tantalos, a Greek mythological character, father of Niobe
Kristall tuzilma
Tana markazli kubik
Tarix
Tantalum was discovered in Sweden in 1802 by Anders Ekeberg in the minerals tantalite from Finland and yttrotantalite from Sweden.
Unfortunately, William Hyde Wollaston claimed Ekeberg's new element was actually niobium, which had also been discovered in 1802.
In 1846, German chemist Heinrich Rose finally proved beyond doubt that tantalum and niobium were different elements.
Unfortunately, William Hyde Wollaston claimed Ekeberg's new element was actually niobium, which had also been discovered in 1802.
In 1846, German chemist Heinrich Rose finally proved beyond doubt that tantalum and niobium were different elements.
Qobiqdagi elektronlar soni
2, 8, 18, 32, 11, 2
Elektron konfiguratsiyasi
[Xe] 4f14 5d3 6s2
Tantalum occurs principally in the mineral columbite-tantalite
Jismoniy xususiyatlar
Faza
Qattiq modda
Zichlik
16,654 g/cm3
Erish harorati
3290,15 K | 3017 °C | 5462,6 °F
Qaynash harorati
5731,15 K | 5458 °C | 9856,4 °F
Eritish issiqligi
36 kJ/mol
Bugʻlanish issiqligi
735 kJ/mol
Solishtirma issiqlik sigʻimi
0,14 J/g·K
Yer po‘stidagi miqdori
0,00017%
Olamdagi miqdori
8×10-9%
CAS raqami
7440-25-7
PubChem CID raqami
23956
Atom xususiyatlari
Atom radiusi
146 pm
Kovalentlik radiusi
170 pm
Elektrmanfiylik
1,5 (Poling boʻyicha)
Ionlashish potensiali
7,5496 eV
Molyar hajm
10,90 cm3/mol
Issiqlik oʻtkazuvchanlik
0,575 W/cm·K
Oksidlanish darajasi
-1, 2, 3, 4, 5
Qo‘llanilish sohalari
Tantalum is used in the electronics industry for capacitors and high power resistors.
The high melting point and oxidation resistance lead to the use of the metal in the production of vacuum furnace parts.
Tantalum oxide is used to make special glass with high index of refraction for camera lenses.
The high melting point and oxidation resistance lead to the use of the metal in the production of vacuum furnace parts.
Tantalum oxide is used to make special glass with high index of refraction for camera lenses.
Tantalum is considered to be non-toxic
Izotoplar
Barqaror izotoplar
181TaBeqaror izotoplar
155Ta, 156Ta, 157Ta, 158Ta, 159Ta, 160Ta, 161Ta, 162Ta, 163Ta, 164Ta, 165Ta, 166Ta, 167Ta, 168Ta, 169Ta, 170Ta, 171Ta, 172Ta, 173Ta, 174Ta, 175Ta, 176Ta, 177Ta, 178Ta, 179Ta, 180Ta, 182Ta, 183Ta, 184Ta, 185Ta, 186Ta, 187Ta, 188Ta, 189Ta, 190Ta