![[ATOM]](atom.gif) |
Scandium
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Information valid for Sc-45 unless otherwise noted
Basic Information
Symbol: Sc
Atomic Number: 21
Mass: 44.95591
Melting Point: 1539.0 C
Boiling Point: 2832.0 C
Number of Protons/Electrons: 21
Number of Neutrons: 24
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 2.989 g/cm3
Color: silvery
Atomic Structure
![[Bohr Model of Scandium]](b0021.gif) |
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Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 9
Fourth Energy Level: 2
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Isotopes
| Isotope |
Half Life |
| Sc-44 |
3.92 hours |
| Sc-45 |
Stable |
| Sc-46 |
83.81 days |
| Sc-46m |
18.72 seconds |
| Sc-47 |
3.34 days |
| Sc-48 |
43.67 hours |
| Sc-49 |
57.3 minutes |
Facts
Date of Discovery: 1879
Discoverer: Lars Nilson
Name Origin: From Scandinavia
Uses: No uses known
Obtained From: minerals (thortveitile, wiikite)