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Basic Information
Name: Scandium
Symbol: Sc
Atomic Number: 21
Atomic Mass: 44.95591 amu
Melting Point: 1539.0 °C (1812.15 °K, 2802.2 °F)
Boiling Point: 2832.0 °C (3105.15 °K, 5129.6 °F)
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]](Chemical Elements_com - Scandium (Sc)_files/b0021.gif) |
Number of Energy Levels: 4 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 9 Fourth Energy Level: 2 |
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)