unseptunium (Usu)
hypothetical chemical element with symbol Usu and atomic number 171.
| Rhif Atomig | 171 |
|---|---|
| Symbol Yr Elfen | Usu |
| Proton | 171 |
| Electron | 171 |
| Ffurfwedd electronig | 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6 8s2 5g18 6f14 7d10 8p6 9s2 6g1 |
| plisgyn yr electron | 2, 8, 18, 32, 50, 33, 18, 8, 2 |
