Te
Tellurium is a rare metalloid used in solar panels and thermoelectric devices.
Physical Properties
| পদাৰ্থ | 127.6 u |
| ঘনত্ব | 6.232 g/cm³ |
| Melting Point | 722.66 K |
| উত্তাপৰ বিন্দু | 1261.0 K |
| আকৃতি | Silvery-white crystalline |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 2.1 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 869.3 kJ/mol |
| ইলেকট্ৰন | 190.2 kJ/mol |
| Oxidation States | -2, +2, +4, +6 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Kr] 4d10 5s2 5p4 |
| পৰমাণু | 123.0 pm |
| কোভালেন্ট বেৰিয়াড | 138.0 pm |
| Van der Waals Radius | 206.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Franz-Joseph Muller von Reichenstein |
| আবিষ্কাৰৰ বছৰ | 1783 |
| অৱস্থান | Sibiu, Romania |
| Named After | Latin 'tellus' meaning Earth |
বিষয়ে Tellurium
Tellurium is a brittle, mildly toxic, silvery-white metalloid. It is one of the rarest stable solid elements. Its conductivity increases with light exposure. Even tiny exposure causes intense garlic-like body odor.
Uses & Applications
Solar panels (CdTe), thermoelectric devices, rubber vulcanization, and semiconductor alloys.
মজা কথা
Exposure to even tiny amounts of tellurium gives a person an intense garlic-like body odor that can persist for weeks.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 126 | 0.1884% | - | Yes |
| 128 | 0.3174% | - | Yes |
| 130 | 0.3408% | - | Yes |
ইলেকট্ৰন
[Kr] 4d10 5s2 5p4