Scandium
Symbol: Sc

Atomic Number: 21
Atomic Weight: 44.9559
Protons: 21
Neutrons: 24
Electrons: 21
Group: IIIB

Brief Description:
Scandium is not very abundant on earth, forming more often in stars. It is a silvery-white metal that gains a pink or yellow tinge when exposed to air. Scandium also reacts rapidly with most acids.