Compare Silicon vs Flerovium
Comparing Silicon (Si) and Flerovium (Fl). Atomic numbers 14 and 114 with atomic masses 28.084 u and 289 u, classified as metalloid and post-transition metal. Below: a side-by-side comparison of their physical, atomic, electron-configuration and historical properties, including density, melting and boiling points, ionization energies, oxidation states and discovery history.
Periodic properties of the elements
| Silicon | Flerovium | |
|---|---|---|
| Symbol | Si | Fl |
| Atomic number | 14 | 114 |
| Group | 14 | 14 |
| Period | 3 | 7 |
| Block | p | p |
| Element category | Metalloid | Post-Transition Metal |
Physical properties
| Silicon | Flerovium | |
|---|---|---|
| Phase at STP | Solid | Solid |
| Density | 2.329 g/cm3 | 14 g/cm3 |
| Atomic weight | 28.084 u | 289 u |
| Melting point | 1687 K 1413.85 °C 2576.93 °F | 340 K 66.85 °C 152.33 °F |
| Boiling point | 3538 K 3264.85 °C 5908.73 °F | 420 K 146.85 °C 296.33 °F |
Atomic properties
| Silicon | Flerovium | |
|---|---|---|
| Electronegativity (Pauling Scale) | 1.9 | 0 |
| Electron affinity | 134.068 kJ/mol | 0 kJ/mol |
| Oxidation states | −4, −3, −2, −1, 0, +1, +2, +3, +4 (an amphoteric oxide) | (0), (+1), (+2), (+4), (+6) (predicted) |
| Ionization energies |
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Electron configuration
| Silicon | Flerovium | |
|---|---|---|
| Shorthand configuration | [Ne] 3s2 3p2 | [Rn] 5f14 6d10 7s2 7p2 |
| Full configuration | 1s2 2s2 2p6 3s2 3p2 | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p2 |
| Electrons per shell | 2, 8, 4 | 2, 8, 18, 32, 32, 18, 4 |
History
| Silicon | Flerovium | |
|---|---|---|
| Prediction | Antoine Lavoisier (1787) | |
| Discovery | Jöns Jacob Berzelius (1823) | Joint Institute for Nuclear Research, Lawrence Livermore National Laboratory (1998) |
| First isolation | Jöns Jacob Berzelius (1823) | |
| Named by | Thomas Thomson (1817) | JINR, LLNL |