Skandiy
21
Sc
Guruh
3
Davr
4
Blok
d
Protonlar
Elektronlar
Neytronlar
21
21
24
Umumiy xususiyatlar
Atom raqami
21
Atom massasi
44,955912
Mass raqami
45
Turkum
Oʻtish metallar
Ranggi
Kumush
Radioaktivlik
Yoʻq
From the Latin word Scandia, Scandinavia
Kristall tuzilma
Oddiy olti burchakli
Tarix
In 1879, Lars Fredrik Nilson and his team detected scandium in the minerals euxenite and gadolinite.
Nilson prepared 2 grams of scandium oxide of high purity.
Per Teodor Cleve showed that scandium had properties similar to those predicted by Mendeleev for eka-boron.
Metallic scandium was first prepared in 1937 by Fischer and his colleagues.
Nilson prepared 2 grams of scandium oxide of high purity.
Per Teodor Cleve showed that scandium had properties similar to those predicted by Mendeleev for eka-boron.
Metallic scandium was first prepared in 1937 by Fischer and his colleagues.
Qobiqdagi elektronlar soni
2, 8, 9, 2
Elektron konfiguratsiyasi
[Ar] 3d1 4s2
The stable form of scandium is created in supernovas via the r-process
Jismoniy xususiyatlar
Faza
Qattiq modda
Zichlik
2,989 g/cm3
Erish harorati
1814,15 K | 1541 °C | 2805,8 °F
Qaynash harorati
3109,15 K | 2836 °C | 5136,8 °F
Eritish issiqligi
16 kJ/mol
Bugʻlanish issiqligi
318 kJ/mol
Solishtirma issiqlik sigʻimi
0,568 J/g·K
Yer po‘stidagi miqdori
0,0026%
Olamdagi miqdori
3×10-6%
CAS raqami
7440-20-2
PubChem CID raqami
23952
Atom xususiyatlari
Atom radiusi
162 pm
Kovalentlik radiusi
170 pm
Elektrmanfiylik
1,36 (Poling boʻyicha)
Ionlashish potensiali
6,5615 eV
Molyar hajm
15,0 cm3/mol
Issiqlik oʻtkazuvchanlik
0,158 W/cm·K
Oksidlanish darajasi
1, 2, 3
Qo‘llanilish sohalari
Scandium is used in sports equipment such as golf iron shafts, baseball bats, bicycle frames and fishing rods.
Scandium iodide, along with sodium iodide, when added to a modified form of mercury-vapor lamp, produces a form of metal halide lamp.
The radioactive isotope 46Sc is used in oil refineries as a tracing agent.
Scandium iodide, along with sodium iodide, when added to a modified form of mercury-vapor lamp, produces a form of metal halide lamp.
The radioactive isotope 46Sc is used in oil refineries as a tracing agent.
Scandium is considered to be of low toxicity
Izotoplar
Barqaror izotoplar
45ScBeqaror izotoplar
36Sc, 37Sc, 38Sc, 39Sc, 40Sc, 41Sc, 42Sc, 43Sc, 44Sc, 46Sc, 47Sc, 48Sc, 49Sc, 50Sc, 51Sc, 52Sc, 53Sc, 54Sc, 55Sc, 56Sc, 57Sc, 58Sc, 59Sc, 60Sc