Skandio
21
Sc
Grupo
3
Perio
4
Bloko
d
Protonoj
Elektronoj
Neŭtronoj
21
21
24
Ĝeneralaj Propraĵoj
Atoma Nombro
21
Atommaso
44,955912
Amasa Nombro
45
Kategorio
Transirmetaloj
Koloro
Arĝento
Radioaktiva
Ne
De la Latina vorto Scandia, Skandinavio
Kristala Strukturo
Simpla Sesangula
Historio
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.
Elektronoj per ŝelo
2, 8, 9, 2
Elektrona Agordo
[Ar] 3d1 4s2
The stable form of scandium is created in supernovas via the r-process
Fizikaj Propraĵoj
Fazo
Solido
Denso
2,989 g/cm3
Fandpunkto
1814,15 K | 1541 °C | 2805,8 °F
Bolpunkto
3109,15 K | 2836 °C | 5136,8 °F
Varmo de Fuzio
16 kJ/mol
Varmo de Vaporiĝo
318 kJ/mol
Specifa Varmo Kapacito
0,568 J/g·K
Krusta Abundo
0,0026%
Universa Abundo
3×10-6%
CAS Nombro
7440-20-2
PubChem Kunmetita Identiga Nombro
23952
Atomaj Propraĵoj
Atoma Radiuso
162 pm
Kovalenta Radiuso
170 pm
Elektronegativeco
1,36 (Pauling-skalo)
Potencialo de jonigo
6,5615 eV
Atoma Volumo
15,0 cm3/mol
Termika Kondukto
0,158 W/cm·K
Oksidaj Ŝtatoj
1, 2, 3
Aplikoj
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
Izotopoj
Stabilaj Izotopoj
45ScMalstabilaj Isotopoj
36Sc, 37Sc, 38Sc, 39Sc, 40Sc, 41Sc, 42Sc, 43Sc, 44Sc, 46Sc, 47Sc, 48Sc, 49Sc, 50Sc, 51Sc, 52Sc, 53Sc, 54Sc, 55Sc, 56Sc, 57Sc, 58Sc, 59Sc, 60Sc