Md
Mendelevium
উপাদান 101 · 258.09843 u
Mendelevium was the first element produced one atom at a time.
Physical Properties
| পদাৰ্থ | 258.09843 u |
| ঘনত্ব | 10.3 g/cm³ |
| Melting Point | 1100.0 K |
| আকৃতি | Metallic (predicted) |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.3 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 635.0 kJ/mol |
| ইলেকট্ৰন | -93.91 kJ/mol |
| Oxidation States | +2, +3 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Rn] 5f13 7s2 |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Albert Ghiorso, Bernard G. Harvey, Gregory R. Choppin, Stanley G. Thompson, Glenn T. Seaborg |
| আবিষ্কাৰৰ বছৰ | 1955 |
| অৱস্থান | Berkeley, California, USA |
| Named After | Named after Dmitri Mendeleev, creator of the periodic table |
বিষয়ে Mendelevium
Mendelevium was created by bombarding einsteinium with alpha particles. The initial experiment produced only 17 atoms.
Uses & Applications
No practical applications. Scientific research only.
মজা কথা
Mendelevium was the first element identified one atom at a time -- only 17 atoms were initially produced.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 258 | - | 51.5 days | No |
| 260 | - | 27.8 days | No |
ইলেকট্ৰন
[Rn] 5f13 7s2