Db
Dubnium
উপাদান 105 · 268.126 u
Dubnium's chemistry has been studied using only a few atoms at a time.
Physical Properties
| পদাৰ্থ | 268.126 u |
| ঘনত্ব | 29.3 g/cm³ |
| আকৃতি | Metallic (predicted) |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| Oxidation States | +5 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Rn] 5f14 6d3 7s2 |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Joint Institute for Nuclear Research / Lawrence Berkeley National Laboratory |
| আবিষ্কাৰৰ বছৰ | 1968 |
| অৱস্থান | Dubna, Russia / Berkeley, USA |
| Named After | Named after Dubna, Russia |
বিষয়ে Dubnium
Dubnium is a synthetic, radioactive transactinide element. Limited experiments show it behaves somewhat like niobium and tantalum, with some unexpected properties.
Uses & Applications
No practical applications. Scientific research only.
মজা কথা
Chemical experiments on dubnium use only a few atoms at a time, yet scientists found surprising deviations from predicted behavior.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 262 | - | 34 seconds | No |
| 268 | - | 1.2 days | No |
ইলেকট্ৰন
[Rn] 5f14 6d3 7s2