Yttrium
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Y |
| Atomic Number: | 39 |
| Atomic weight: | 88.9059u |
| Melting Point: | 1799K |
| Boiling Point: | 3611K |
| Number of Protons/Electrons: | 39 |
| Number of Neutrons: | 50 |
| Classification: | Transition Metal |
| Crystal Structure: | Hexagonal |
| Density at 293 K: | 4.5g/mL |
| Color: | Sivery |
| Bonding radius: | 1.62A |
| Atomic radius: | 2.27A |
| Ionization Potential: | 6.38V |
| Electronegativity: | 1.22 |
| Heat of vaporization: | 363kJ/mol |
| Heat of fusion: | 11.4kJ/mol |
| Specific heat: | 0.3J/gK |
| Electron configuration: | [Kr]4d15s2 |
Crystal Structure
| Isotope | Half Life |
| Y86 | 14.74 hours |
| Y87 | 3.35 days |
| Y88 | 106.6 days |
| Y89 | Stable |
| Y90 | 2.67 days |
| Y90m | 3.19 hours |
| Y91 | 58.51 days |
| Y91m | 49.71 minutes |
| Y92 | 3.54 hours |
| Y93 | 10.2 hours |
| Date of Discovery: | 1794 |
| Discoverer: | Johann Gadolin |
| Uses: | color TV's, radars |
| Obtained From: | monazite, xenotime, yettriac |