Compounds. Scandium chemistry is almost completely dominated by the trivalent ion, Sc3+. The radii of M3+ ions in the table below indicate that the chemical properties of scandium ions have more in common with yttrium ions than with aluminium ions.
What is the ion of scandium?
Scandium(3+)
| PubChem CID | 4534583 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | Sc+3 |
| Synonyms | scandium(3+) Scandium, ion (Sc3+) 22537-29-7 |
| Molecular Weight | 44.95591 |
What is oxidation state of scandium?
Oxidation state of scandium is +3. Scandium does not show +2 oxidation state as it requires high energy for removing one more electron is very high.
How is scandium obtained?
Scandium can be obtained from the minerals thortveitite ((Sc, Y)2Si2O7), bazzite (Be3(Sc, Al)2Si6O18) and wiikite, but is usually obtained as a byproduct of refining uranium. Metallic scandium was first produced in 1937 and the first pound (0.45 kilograms) of pure scandium was produced in 1960.
Why can scandium form multiple ions?
Scandium’s electron config is [Ar] 3p6 4s2 3d1 . It can’t lose 2 electrons to form a positive ion because it can cause destabilization. It can form a +3 ion to achieve a noble gas configuration.
What is electronic configuration of scandium?
[Ar] 3d¹ 4s²
Scandium/Electron configuration
What is the specific charge of a scandium 3+ ion?
Scandium
| Quantity | |
|---|---|
| ion charge: +3 | |
| coordination number: 6 | 88.5 pm |
| coordination number: 8 | 101.0 pm |
Why does scandium have a 3+ charge?
Solution: Scandium shows +3 oxidation state as it can form a +3 ion to achieve a noble gas configuration. The 3+ state is strongly favored for Scandium.
Why does scandium only show one oxidation state?
scandium outer configuration is 3d1 4s2 . it loses 1 electron from d orbital n 2 electrons from s orbital to form Sc3+ ion whose configuration is equivalent with argon which has a noble gas configuration. Scandium, due to the availability of very few electrons for bonding, does not show variable oxidation states.
What is the electron configuration of scandium?
Who produces scandium?
According to the US Geological Survey, scandium-producing countries include China, where it is a by-product of iron ore, rare earths, titanium and zirconium; and the Philippines, where it is a by-product of nickel. Scandium is also produced as a by-product of uranium in Russia, Ukraine and Kazakhstan.
Why is scandium 3+ ion?
What does scandium react with?
Compact scandium is a silvery-white metal. It reacts with oxygen, halogens, sulfur and carbon. The surface film formed in air prevents further oxidation. With nitrogen, scandium reacts at temperatures above 770 K with nitride, ScN, formation.
What is the radius of hydrolysis in scandium?
The ion radius Sc 3+ (0.083 nm [1]) is less than Y 3+ (0.097 nm) and triple-charged RE ions (0.088–0.103 nm). Therefore, in scandium compacts the tendency to hydrolysis is greater than in similar rare earth compounds.
What elements form eutectic compounds with scandium?
With metals of I, II, VII, VIII, and VI by-subgroups and II, III, IV, and V main subgroups of the periodic table, scandium forms intermetallic compounds ScMe, Sc 2 Me, ScMe 2, and ScMe 3, and other types. The elements of III, IV, V and VI by-subgroups form eutectics with scandium.
What is the atomic number of scandium?
The atomic number of scandium is 21. Among the light metals, scandium is unique in its combination of low density with high melting point. Typical physical properties of scandium are given in Table 24.24.
