Mt
Meitnerium
উপাদান 109 · 277.154 u
অজ্ঞাত বৈশিষ্ট্যসমূহ
d-ব্লক
Period 7
দল 9
Solid at RT
Radioactive
t½ 7.6 seconds
Synthetic
Wikipedia →
Meitnerium is named after Lise Meitner, who co-discovered nuclear fission.
Physical Properties
| পদাৰ্থ | 277.154 u |
| ঘনত্ব | 37.4 g/cm³ |
| আকৃতি | Metallic (predicted) |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| Oxidation States | +1, +3, +6, +9 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Rn] 5f14 6d7 7s2 |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Peter Armbruster, Gottfried Munzenberg and others |
| আবিষ্কাৰৰ বছৰ | 1982 |
| অৱস্থান | Darmstadt, Germany |
| Named After | Named after Lise Meitner, co-discoverer of nuclear fission |
বিষয়ে Meitnerium
Meitnerium is a synthetic, extremely radioactive element expected to be similar to iridium. Only a few atoms have ever been produced.
Uses & Applications
No practical applications. Scientific research only.
মজা কথা
Lise Meitner was overlooked for the Nobel Prize despite co-discovering nuclear fission -- one of the most notable snubs in Nobel history.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 276 | - | 0.72 seconds | No |
| 278 | - | 7.6 seconds | No |
ইলেকট্ৰন
[Rn] 5f14 6d7 7s2