Ru
Ruthenium is a rare platinum group metal known for its hardness and catalytic properties.
Physical Properties
| পদাৰ্থ | 101.07 u |
| ঘনত্ব | 12.37 g/cm³ |
| Melting Point | 2607.0 K |
| উত্তাপৰ বিন্দু | 4423.0 K |
| আকৃতি | Silvery-white metallic |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 2.2 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 710.2 kJ/mol |
| ইলেকট্ৰন | 101.3 kJ/mol |
| Oxidation States | +1, +2, +3, +4, +5, +6, +7, +8 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Kr] 4d7 5s1 |
| পৰমাণু | 134.0 pm |
| কোভালেন্ট বেৰিয়াড | 146.0 pm |
| Van der Waals Radius | 207.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Karl Ernst Claus |
| আবিষ্কাৰৰ বছৰ | 1844 |
| অৱস্থান | Kazan, Russia |
| Named After | Latin 'Ruthenia' meaning Russia |
বিষয়ে Ruthenium
Ruthenium is a hard, silvery-white metal of the platinum group and one of the rarest elements on Earth. It is unaffected by air, water, and acids but dissolves in molten alkalis.
Uses & Applications
Hardening platinum and palladium alloys, electrical contacts, thick-film resistors, catalysts, and solar cells.
মজা কথা
Ruthenium is one of the rarest elements on Earth with only about 0.001 ppm in the crust.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 99 | 0.1276% | - | Yes |
| 100 | 0.126% | - | Yes |
| 101 | 0.1706% | - | Yes |
| 102 | 0.3155% | - | Yes |
ইলেকট্ৰন
[Kr] 4d7 5s1