P
Phosphorus is essential to life, forming part of DNA, RNA, and ATP.
Physical Properties
| পদাৰ্থ | 30.974 u |
| ঘনত্ব | 1.82 g/cm³ |
| Melting Point | 317.3 K |
| উত্তাপৰ বিন্দু | 553.65 K |
| আকৃতি | Colorless/red/white waxy solid |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 2.19 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 1011.8 kJ/mol |
| ইলেকট্ৰন | 72.0 kJ/mol |
| Oxidation States | -3, -2, -1, +1, +2, +3, +4, +5 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Ne] 3s2 3p3 |
| পৰমাণু | 98.0 pm |
| কোভালেন্ট বেৰিয়াড | 107.0 pm |
| Van der Waals Radius | 180.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Hennig Brand |
| আবিষ্কাৰৰ বছৰ | 1669 |
| অৱস্থান | Hamburg, Germany |
| Named After | Greek 'phosphoros' meaning light-bearing |
বিষয়ে Phosphorus
Phosphorus exists in several allotropes, the most common being white and red. White phosphorus is highly toxic and pyrophoric, glowing in the dark. Red phosphorus is more stable and less toxic. Phosphorus was the first element discovered by a named individual.
Uses & Applications
Fertilizers (phosphates), matches, detergents, pesticides, steel production, and food additives.
মজা কথা
Phosphorus was discovered by Hennig Brand in 1669 while boiling over 1,500 gallons of human urine looking for the philosopher's stone.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 31 | 1.0% | - | Yes |
ইলেকট্ৰন
[Ne] 3s2 3p3