Name: Europium
Symbol: Eu
Atomic Number: 63
Atomic Mass: 151.964 amu
Melting Point: 822.0 °C (1095.15 °K, 1511.6 °F)
Boiling Point: 1597.0 °C (1870.15 °K, 2906.6 °F)
Number of Protons/Electrons: 63
Number of Neutrons: 89
Crystal Structure: Cubic
Density @ 293 K: 5.259 g/cm3
Color: silver
Atomic Structure
![[Bohr Model of Europium]](b0063.gif) |
Number of Energy Levels: 6 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 25 Fifth Energy Level: 8 Sixth Energy Level: 2 |
Isotopes
| Isotope | Half Life |
| Eu-147 | 24.4 days |
| Eu-148 | 54.5 days |
| Eu-149 | 93.1 days |
| Eu-150 | 36.0 years |
| Eu-151 | Stable |
| Eu-152 | 13.5 years |
| Eu-152m | 9.3 hours |
| Eu-153 | Stable |
| Eu-154 | 8.6 years |
| Eu-155 | 7.4 years |
| Eu-156 | 15.2 days |
Facts
Date of Discovery: 1901Discoverer: Eugene Demarcay
Name Origin: Europe
Uses: color televisions
Obtained From: Man-made
Information provided by: http://www.chemicalelements.com