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Scandium is a rare transition metal used to strengthen aluminum alloys.
Physical Properties
| পদাৰ্থ | 44.956 u |
| ঘনত্ব | 2.989 g/cm³ |
| Melting Point | 1814.0 K |
| উত্তাপৰ বিন্দু | 3109.0 K |
| আকৃতি | Silvery-white metallic |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.36 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 633.1 kJ/mol |
| ইলেকট্ৰন | 18.1 kJ/mol |
| Oxidation States | +1, +2, +3 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Ar] 3d1 4s2 |
| পৰমাণু | 162.0 pm |
| কোভালেন্ট বেৰিয়াড | 170.0 pm |
| Van der Waals Radius | 211.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Lars Fredrik Nilson |
| আবিষ্কাৰৰ বছৰ | 1879 |
| অৱস্থান | Uppsala, Sweden |
| Named After | Latin 'Scandia' meaning Scandinavia |
বিষয়ে Scandium
Scandium is a soft, silvery-white transition metal often classified as a rare earth element. It develops a yellowish tinge when oxidized. Scandium is common in stars but rare on Earth in concentrated deposits.
Uses & Applications
Aluminum-scandium alloys for aerospace, sports equipment, and high-intensity metal halide lamps.
মজা কথা
Scandium is so dispersed in Earth's crust that concentrated deposits are rare, making it more expensive than most rare earth elements.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 45 | 1.0% | - | Yes |
ইলেকট্ৰন
[Ar] 3d1 4s2