Scandium element (Sc) is in group 3 and period 4 of a periodic table. Scandium is in the d-block and it is classified as a transition element on the periodic table.
There is a lot more information related to scandium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Scandium element (Information Table)
- Scandium element in Periodic table
- Facts about Scandium
- Properties of Scandium
- Uses of Scandium
Scandium Element (Information Table)
The important data related to scandium element is given in the table below.
|Appearance of scandium||Silvery white|
|Atomic number of scandium||21|
|Symbol of scandium||Sc|
|Atomic mass of scandium||44.956 u|
|Protons, Neutrons & Electrons in scandium||Protons: 21, Neutrons: 24, Electrons: 21|
|State of scandium (at STP)||Solid|
|Group number of scandium in periodic table||3|
|Period number of scandium in periodic table||4|
|Block of scandium in periodic table||p-block|
|Category of scandium||Transition metal|
|Bohr model or Electrons per shell or Electrons arrangement in scandium||2, 8, 9, 2|
|Electron configuration of scandium||[Ar] 3d1 4s2|
|Orbital diagram of scandium|
|Valence electrons in scandium||2|
|Electronegativity of scandium (on pauling scale)||1.36|
|Atomic radius of scandium (van der Waals radius)||211 picometers|
|Density of scandium||2.985 g/cm3|
|1st ionization energy of scandium||6.56 eV|
|Main isotope of scandium||45Sc|
|Melting point of scandium||1814 K or 1541 °C or 2806 °F|
|Boiling point of scandium||3109 K or 2836 °C or 5136 °F|
|Crystal structure of scandium||Hexagonal closed packing|
|Discovery of scandium||By Lars Frederik Nilson in 1879|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Scandium element in Periodic table
The Scandium element (Sc) has the atomic number 21 and is located in group 3 and period 4. Scandium is a metal and it is classified as a transition element.
Facts about Scandium
Here are a few interesting facts about scandium element.
- Scandium is classified as a transition metal, but it is also a rare earth metal as it is evenly spread on the earth and it is difficult to find the scandium ores all at one place on the earth.
- The Scandium element was predicted by Mendeleev in 1869 and he named the element as eka-boron.
- Scandium is a light metal (like aluminum) but it has a higher melting point than aluminum. The melting point of scandium is 660 °C, while that of aluminum is 1541 °C.
- The abundance of scandium in the earth’s crust is around 18 to 25 ppm.
- Scandium is the 35th most abundant element in the earth’s crust.
- The amount of scandium is more on the moon as well as on the sun, as compared to the amount on the earth.
Properties of scandium
Here is a list of some physical properties and chemical properties of scandium.
Physical properties of scandium
- Scandium is a moderately soft metal having a silvery white appearance.
- The atomic radius of the scandium atom is 211 picometers.
- The density of scandium is 2.985 g/cm3, which is approximately 3 times that of water.
Chemical properties of scandium
- When scandium is kept open in air, it reacts with oxygen and forms Sc2O3.
- Scandium has many isotopes, but the most stable isotope is 45Sc.
- Scandium can easily form compounds like halides, oxides and hydroxides.
- Scandium can dissolve slowly in most of the dilute acids.
Uses of scandium
Here are some uses of the scandium element.
- Scandium is mainly used in aluminum-scandium alloys that are used in components of aerospace industries.
- Aluminum-scandium alloys are also used in sports equipment like baseball bats, bicycle frames, tent poles, etc.
- 46Sc is a radioactive isotope of scandium which is used as a tracing agent in oil refineries.