Name: Zirconium
Symbol: Zr
Atomic Number: 40
Atomic Mass: 91.224 amu
Melting Point: 1852.0 °C (2125.15 °K, 3365.6 °F)
Boiling Point: 4377.0 °C (4650.15 °K, 7910.6 °F)
Number of Protons/Electrons: 40
Number of Neutrons: 51
Crystal Structure: Hexagonal
Density @ 293 K: 6.49 g/cm3
Color: Grayish
Atomic Structure
![[Bohr Model of Zirconium]](b0040.gif) |
Number of Energy Levels: 5 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 10 Fifth Energy Level: 2 |
Isotopes
| Isotope | Half Life |
| Zr-86 | 16.5 hours |
| Zr-88 | 83.4 days |
| Zr-89 | 3.27 days |
| Zr-90 | Stable |
| Zr-91 | Stable |
| Zr-92 | Stable |
| Zr-93 | 1530000.0 years |
| Zr-94 | Stable |
| Zr-95 | 64.02 days |
| Zr-96 | Stable |
| Zr-97 | 16.9 hours |
Facts
Date of Discovery: 1789Discoverer: Martin Klaproth
Name Origin: zircon (mineral)
Uses: nuclear applications
Obtained From: zircon, baddeleyite
Information provided by: http://www.chemicalelements.com