Zr
Zirconium is a corrosion-resistant metal used in nuclear reactors and as a diamond substitute.
Physical Properties
| পদাৰ্থ | 91.224 u |
| ঘনত্ব | 6.506 g/cm³ |
| Melting Point | 2128.0 K |
| উত্তাপৰ বিন্দু | 4682.0 K |
| আকৃতি | Silvery-white metallic |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.33 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 640.1 kJ/mol |
| ইলেকট্ৰন | 41.1 kJ/mol |
| Oxidation States | +1, +2, +3, +4 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Kr] 4d2 5s2 |
| পৰমাণু | 160.0 pm |
| কোভালেন্ট বেৰিয়াড | 175.0 pm |
| Van der Waals Radius | 186.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Martin Heinrich Klaproth |
| আবিষ্কাৰৰ বছৰ | 1789 |
| অৱস্থান | Berlin, Germany |
| Named After | Arabic 'zargun' meaning gold-colored, from the mineral zircon |
বিষয়ে Zirconium
Zirconium is a lustrous, gray-white, strong transition metal similar to hafnium. It is transparent to neutrons, making it ideal for nuclear fuel rod cladding. Cubic zirconia is a popular diamond simulant.
Uses & Applications
Nuclear reactor fuel rod cladding, cubic zirconia jewelry, ceramic knives, and dental crowns.
মজা কথা
Cubic zirconia is so convincing as a diamond substitute that gemological instruments are often needed to tell them apart.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 90 | 0.5145% | - | Yes |
| 91 | 0.1122% | - | Yes |
| 92 | 0.1715% | - | Yes |
| 94 | 0.1738% | - | Yes |
ইলেকট্ৰন
[Kr] 4d2 5s2