Nd
Neodymium is used to make the strongest permanent magnets available.
Physical Properties
| পদাৰ্থ | 144.24 u |
| ঘনত্ব | 7.007 g/cm³ |
| Melting Point | 1297.0 K |
| উত্তাপৰ বিন্দু | 3347.0 K |
| আকৃতি | Silvery-white with yellowish tinge |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.14 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 533.1 kJ/mol |
| ইলেকট্ৰন | 184.9 kJ/mol |
| Oxidation States | +2, +3 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Xe] 4f4 6s2 |
| পৰমাণু | 181.0 pm |
| কোভালেন্ট বেৰিয়াড | 201.0 pm |
| Van der Waals Radius | 229.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Carl Auer von Welsbach |
| আবিষ্কাৰৰ বছৰ | 1885 |
| অৱস্থান | Vienna, Austria |
| Named After | Greek 'neos didymos' meaning new twin |
বিষয়ে Neodymium
Neodymium is a soft, silvery metal and the second most abundant rare earth after cerium. NdFeB magnets are the strongest type of permanent magnet commercially available and essential for modern technology.
Uses & Applications
Powerful permanent magnets (hard drives, headphones, electric motors, wind turbines), lasers, and glass coloring.
মজা কথা
Neodymium magnets are so powerful that two large ones can crush fingers, and they are essential for EV motors and wind turbines.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 142 | 0.27152% | - | Yes |
| 143 | 0.12174% | - | Yes |
| 144 | 0.23798% | 2.29e15 years | No |
| 146 | 0.17189% | - | Yes |
ইলেকট্ৰন
[Xe] 4f4 6s2