Pt
Platinum is a rare precious metal prized for its catalytic properties.
Physical Properties
| পদাৰ্থ | 195.08 u |
| ঘনত্ব | 21.46 g/cm³ |
| Melting Point | 2041.4 K |
| উত্তাপৰ বিন্দু | 4098.0 K |
| আকৃতি | Silvery-white, lustrous metallic |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 2.28 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 870.0 kJ/mol |
| ইলেকট্ৰন | 205.3 kJ/mol |
| Oxidation States | +2, +4, +5, +6 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Xe] 4f14 5d9 6s1 |
| পৰমাণু | 139.0 pm |
| কোভালেন্ট বেৰিয়াড | 136.0 pm |
| Van der Waals Radius | 175.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Antonio de Ulloa, Charles Wood |
| আবিষ্কাৰৰ বছৰ | 1735 |
| অৱস্থান | South America |
| Named After | Spanish 'platina del Pinto' meaning little silver of the Pinto River |
বিষয়ে Platinum
Platinum is a dense, malleable, highly unreactive precious metal. It is an excellent catalyst for automotive catalytic converters. It is rarer than gold and widely used in jewelry.
Uses & Applications
Catalytic converters, jewelry, laboratory equipment, chemotherapy (cisplatin), and fuel cells.
মজা কথা
All the platinum ever mined in history would fit into a room about 25 feet on each side.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 194 | 0.32967% | - | Yes |
| 195 | 0.33832% | - | Yes |
| 196 | 0.25242% | - | Yes |
ইলেকট্ৰন
[Xe] 4f14 5d9 6s1