| Content-Type | image/gif |
|---|---|
| Content-Length | 563.89 kB |
| Size | 512x512 |
#56 Barium - rarity SPINNIN'IN
| 1st ionization energy | 5.212 eV | 0.85% |
|---|---|---|
| appearance | Silvery gray metallic luster with a pale yellow tint | 0.85% |
| atomic mass | 137.33 u | 0.85% |
| atomic number | 56 | 0.85% |
| atomic radius | 268 picometers (van der Waals radius) | 0.85% |
| boiling point | 2118 K or 1845 °C or 3353 °F | 0.85% |
| cas number | 7440-39-3 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Alkaline earth metals | 5.08% |
| crystal structure | BCC (Body centered cubic) | 7.63% |
| density | 3.51 g/cm3 | 0.85% |
| electronegativity | 0.89 (Pauling scale) | 0.85% |
| electronic configuration | [Xe] 6s2 | 0.85% |
| electrons | 56 | 0.85% |
| electrons arrangement | 2, 8, 18, 18, 8, 2 | 0.85% |
| main isotopes | 138Ba | 0.85% |
| melting point | 1000 K or 727 °C or 1341 °F | 0.85% |
| neutrons | 81 | 0.85% |
| position | Group: 2, Period: 6, Block: s | 0.85% |
| rarity | SPINNIN'IN | 33.33% |
| state | Solid | 72.88% |
| sublimation point | - | 99.15% |
| symbol | Ba | 0.85% |
| valence electrons | 2 | 7.63% |
| who discovered | Carl Wilhelm Scheele in 1772 | 0.85% |
Total Rarity Score: 2176.28
Rarity: #9/354