Arsenic vs Flerovium
| Property | As Arsenic | Fl Flerovium |
|---|---|---|
| Atomic number | 33 | 114 |
| Symbol | As | Fl |
| Name | Arsenic | Flerovium |
| Category | metalloid | post-transition-metal |
| Standard Atomic Weight | 74.921595 u | 289 u |
| Period | 4 | 7 |
| Group | 15 | 14 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [Ar]4s23d104p3 | [Rn] 7s27p2 5f14 6d10(predicted) |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 2.18 | N/A |
| Electron affinity | 0.81 eV | -0.5 eV |
| Density | 5776 kg/m³ | 9928 kg/m³ |
| Melting point | 816.85 °C | -273.15 °C |
| Boiling point | 613.85 °C | -63.15 °C |
| Discovery year | 1250 | 1998 |