Scandium Element in Periodic Table | Atomic Number Atomic Mass

Scandium Element:

Scandium is a silvery-white metallic d-block element. Its atomic number is 21 and indicated by the symbol Sc. In the periodic table Sc is a member of 3^rd group and 4^th period. Sc is not found free in nature but Scandium is usually found in rare minerals from Scandinavia and Madagascar such as thortveitite, euxenite and gadolinite. Commercially, scandium is obtained as a by-product of uranium refining. On Earth Scandium is only the 50th most common element and in the sun it is the 23rd most common element. Sc  contains 1 natural isotope and 13 artificial isotopes. ⁴⁵Sc is the most stable isotope.

Uses Of Scandium Element:

• Scandium is mainly used for research purposes. It is used in aluminium- scandium alloys which have been used in Russian MIG fighter planes, high-end bicycle frames and baseball bats.
• Scandium iodide is used in mercury vapor lamps to produce a highly efficient light source resembling sunlight. These lamps are used to replicate sunlight in studios for the film and television industry to reproduce colour well when filming indoors or at night-time.
• The radioactive isotope ⁴⁵Sc is used as a tracing agent in oil refineries. It can also be used in underground pipes to detect leaks.

Scandium Element Information:

Discovery year:  1879

Discovered by: Lars Fredrik Nilson

Atomic number: 21

Relative atomic mass: 44.956 

Electron configuration: [Ar] 3d¹ 4s²

Block: d-block

Other elements in the same block:

Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Nickel, Copper, Zinc, Yttrium, Zirconium, Niobium, Molybdenum, Technetium, Ruthenium, Rhodium, Palladium, Silver, Cadmium, Lanthanum,  Hafnium, Tantalum, Tungsten, Rhenium, Osmium, Iridium, Platinum, Gold, Mercury, Actinium, Rutherfordium, Dubnium, Seaborgium, Bohrium, Hassium, Meitnerium, Darmstadtium, Roentgenium and  Copernicium are the elements in the same block.

Period: period 4

Other elements in the same period:

Potassium, Calcium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Nickel, Copper, Zinc, Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton.

Group: group 3​

Other elements in the same group:

Yttrium, Lanthanum and Actinium are the same group elements

Other elements in the same orbital:

Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Nickel, Copper and Zinc are the elements in the same orbital.

Allotropes: none

Key isotopes: ⁴⁵Sc 

Melting point: 1541°C, 2806°F, 1814 K

Boiling point: 2836°C, 5137°F, 3109 K

Element category: transition metal

Density (g cm⁻³): 2.99

CAS number:7440-20-2

Color: silvery white

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