| Content-Type | image/png |
|---|---|
| Content-Length | 5.44 kB |
| Size | 512x512 |
#12 Magnesium - rarity ZERO-KELVIN
| 1st ionization energy | 7.646 eV | 0.85% |
|---|---|---|
| appearance | Shiny grey | 0.85% |
| atomic mass | 24.305 u | 0.85% |
| atomic number | 12 | 0.85% |
| atomic radius | 173 picometers (van der Waals radius) | 0.85% |
| boiling point | 1363 K or 1091 °C or 1994 °F | 0.85% |
| cas number | 7439-95-4 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Alkaline earth metals | 5.08% |
| crystal structure | HCP (Hexagonal close packing) | 6.78% |
| density | 1.74 g/cm3 | 0.85% |
| electronegativity | 1.31 (Pauling scale) | 0.85% |
| electronic configuration | [Ne] 3s2 | 0.85% |
| electrons | 12 | 0.85% |
| electrons arrangement | 2, 8, 2 | 0.85% |
| main isotopes | 24Mg | 0.85% |
| melting point | 923 K or 650 °C or 1202 °F | 0.85% |
| neutrons | 12 | 1.69% |
| position | Group: 2, Period: 3, Block: s | 0.85% |
| rarity | ZERO-KELVIN | 33.33% |
| state | Solid | 72.88% |
| sublimation point | - | 99.15% |
| symbol | Mg | 0.85% |
| valence electrons | 2 | 7.63% |
| who discovered | Joseph Black in 1755 | 0.85% |
Total Rarity Score: 2118.92
Rarity: #17/354