unpentpentium (Upp)
hypothetical chemical element with the atomic number 155.
| Rhif Atomig | 155 |
|---|---|
| Symbol Yr Elfen | Upp |
| Proton | 155 |
| Electron | 155 |
| Ffurfwedd electronig | 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6 8s2 5g18 6f14 7d3 |
| plisgyn yr electron | 2, 8, 18, 32, 50, 32, 11, 2 |
