Skandiyum
21
Sc
Grup
3
Periyot
4
Blok
d
Protonlar
Elektronlar
Nötronlar
21
21
24
Temel Özellikleri
Atom numarası
21
Atom ağırlığı
44,955912
Kütle Numarası
45
Kategori
Geçiş metalleri
Renk
Gümüşi
Radyoaktif
Hayir
From the Latin word Scandia, Scandinavia
Kristal yapısı
Basit altıgen
Tarihi
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.
Enerji seviyesi başına Elektronlar
2, 8, 9, 2
Elektron dizilimi
[Ar] 3d1 4s2
The stable form of scandium is created in supernovas via the r-process
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
2,989 g/cm3
Ergime noktası
1814,15 K | 1541 °C | 2805,8 °F
Kaynama noktası
3109,15 K | 2836 °C | 5136,8 °F
Ergime ısısı
16 kJ/mol
Buharlaşma ısısı
318 kJ/mol
Isı kapasitesi
0,568 J/g·K
Dünya kabuğundaki bulunulabilirliği
0,0026%
Evrendeki bulunulabilirliği
3×10-6%
CAS Numarası
7440-20-2
PubChem CID Numarası
23952
Atom Özellikleri
Atom yarıçapı
162 pm
Kovalent yarıçapı
170 pm
Elektronegatifliği
1,36 (Pauling ölçeği)
İyonlaşma enerjisi
6,5615 eV
Atomik Hacim
15,0 cm3/mol
Isıl iletkenlik
0,158 W/cm·K
Yükseltgenme seviyeleri
1, 2, 3
Uygulamalar
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
İzotoplar
Kararlı izotoplar
45ScKararsız 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