unbiunium (Ubu)
hypothetical chemical element with the atomic number 121.
| atomic number | 121 |
|---|---|
| element symbol | Ubu |
| proton | 121 |
| elektron | 121 |
| Elektronski omotač atoma | 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6 8s2 5g1 |
| Elektronska ljuska | 2, 8, 18, 32, 33, 18, 8, 2 |
