Mendelevium
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| General Properties | ||||||||
|---|---|---|---|---|---|---|---|---|
| Atomic number | Predicted atomic mass | Half-life of longest living isotope | Electron Configuration | First developed | ||||
| 101 | 258amu | Around 28 days | [Rn] 5f13 7s2 | 1955 | ||||
| General Properties | |
|---|---|
| Atomic number | 101 |
| Atomic mass | 258amu |
| Half-life of longest living isotope | Around 28 days |
| Electron Configuration | [Rn] 5f13 7s2 |
| First discovered | 1955 |
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Description and uses
Mendelevium is the 101st element of the periodic table. It was developed in 1955 by a group of researchers after they bombarded
einsteinium with alpha particles. Its longest living isotope is 260Md, with a half-life
of around 28 days.