U
Uranium
উপাদান 92 · 238.0289 u
Uranium is the primary fuel for nuclear power plants.
Physical Properties
| পদাৰ্থ | 238.0289 u |
| ঘনত্ব | 19.1 g/cm³ |
| Melting Point | 1405.3 K |
| উত্তাপৰ বিন্দু | 4404.0 K |
| আকৃতি | Silvery-gray metallic |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.38 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 597.6 kJ/mol |
| ইলেকট্ৰন | 50.94 kJ/mol |
| Oxidation States | +2, +3, +4, +5, +6 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Rn] 5f3 6d1 7s2 |
| পৰমাণু | 156.0 pm |
| কোভালেন্ট বেৰিয়াড | 196.0 pm |
| Van der Waals Radius | 186.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Martin Heinrich Klaproth |
| আবিষ্কাৰৰ বছৰ | 1789 |
| অৱস্থান | Berlin, Germany |
| Named After | Named after the planet Uranus |
বিষয়ে Uranium
Uranium is a silvery-gray metallic element. Uranium-235 is the only naturally occurring fissile isotope. Uranium was used as a yellow glass colorant centuries before its radioactivity was discovered.
Uses & Applications
Nuclear power, nuclear weapons, armor-piercing ammunition, radiation shielding, and glass colorant.
মজা কথা
Antique 'Vaseline glass' colored with uranium from the 1800s still glows green under UV light.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 234 | 0.000054% | 245,500 years | No |
| 235 | 0.007204% | 703.8 million years | No |
| 238 | 0.992742% | 4.468 billion years | No |
ইলেকট্ৰন
[Rn] 5f3 6d1 7s2