Nb
Niobium is a soft, ductile transition metal used in superalloys and superconducting magnets.
Physical Properties
| পদাৰ্থ | 92.906 u |
| ঘনত্ব | 8.57 g/cm³ |
| Melting Point | 2750.0 K |
| উত্তাপৰ বিন্দু | 5017.0 K |
| আকৃতি | Gray metallic, bluish when oxidized |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.6 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 652.1 kJ/mol |
| ইলেকট্ৰন | 86.1 kJ/mol |
| Oxidation States | +2, +3, +4, +5 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Kr] 4d4 5s1 |
| পৰমাণু | 146.0 pm |
| কোভালেন্ট বেৰিয়াড | 164.0 pm |
| Van der Waals Radius | 207.0 pm |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Charles Hatchett |
| আবিষ্কাৰৰ বছৰ | 1801 |
| অৱস্থান | London, England |
| Named After | Niobe, daughter of Tantalus in Greek mythology |
বিষয়ে Niobium
Niobium is a light gray, crystalline, ductile metal that becomes a superconductor at cryogenic temperatures. Originally called columbium in America. It is used in the superconducting magnets of the Large Hadron Collider.
Uses & Applications
Superconducting magnets (MRI, particle accelerators), steel alloys for pipelines, jet engines, and jewelry.
মজা কথা
Niobium-titanium alloys are used in the superconducting magnets of the Large Hadron Collider.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 93 | 1.0% | - | Yes |
ইলেকট্ৰন
[Kr] 4d4 5s1