Name: Gallium
Symbol: Ga
Atomic Number: 31
Atomic Mass: 69.723 amu
Melting Point: 29.78 °C (302.93 °K, 85.604004 °F)
Boiling Point: 2403.0 °C (2676.15 °K, 4357.4 °F)
Number of Protons/Electrons: 31
Number of Neutrons: 39
Crystal Structure: Orthorhombic
Density @ 293 K: 5.907 g/cm3
Color: White/Silver
Atomic Structure
![[Bohr Model of Gallium]](b0031.gif) |
Number of Energy Levels: 4 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 3 |
Isotopes
| Isotope | Half Life |
| Ga-66 | 9.5 hours |
| Ga-67 | 3.3 days |
| Ga-68 | 1.1 hours |
| Ga-69 | Stable |
| Ga-71 | Stable |
| Ga-72 | 14.1 hours |
Facts
Date of Discovery: 1875Discoverer: Paul Emile Lecoq de Boisbaudran
Name Origin: From the Latin word Gallia, the old name of France
Uses: semiconductor production
Obtained From: bauxite, germanite, coal
Information provided by: http://www.chemicalelements.com