Promethium
| Use attributes for filter ! | |
| Symbol | Pm |
|---|---|
| Discovered | 1945 |
| Atomic number | 61 |
| Electron configuration | [Xe] 4f56s2 |
| Electrons per shell | 2, 8, 18, 23, 8, 2 |
| Did you know | In atomic batteries, the beta particles emitted by promethium-147 are converted into electric current by sandwiching a small promethium source between two semiconductor plates. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 961598 |
About Promethium
Promethium is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 grams naturally occurring in Earth's crust at any given time.
Promethium Photos
