Stannum[1] (-i, n.), Latinitate classica plumbum album,[2] est metallum post-transitionale coloris argenti, elementum cuius numerus atomicus 50, et symbolum chemicum Sn est. Stannum est elementum gregis principalis in grege 14 systematis periodici, proprietatibus simile amborum gregis 14 elementorum propinquorum, germanii et plumbi, sicut in duobus oxydationis statibus +2 et +4.
| ||||||
| Proprietates generales | ||||||
|---|---|---|---|---|---|---|
| Nomen, Symbolus, Numerus Atomicus | stannum, Sn, 50 | |||||
| Grex, Periodus, Glaeba | 14, 5, p | |||||
| Color |  | |||||
| Pondus atomicum | 118.710 g·mol−1 | |||||
| e- per sphaeram | 2,8,18,18,4 | |||||
| Proprietates physicae | ||||||
| Status | Solidum | |||||
| Punctum liquefactionis | 505.08 K (231.93 °C, 449.47 °F) | |||||
| Punctum fervoris | 2875 K (2602 °C, 4716 °F) | |||||
| Calor latens fusionis | 7.03 kJ·mol−1 | |||||
| Capacitas caloris | (25 °C) 27.112 J·mol−1·K−1 | |||||
| Proprietates atomicae | ||||||
| Structura crystallina | tetragonalis | |||||
| Radius covalentiae | 139±4 pm | |||||
| Radius Van der Waals | 217 pm | |||||
| Varietas | ||||||
| Conductus caloris | (25 °C) 66.8 W/(m·K) | |||||
| Velocitas soni | (25 °C) 2730 m/s | |||||
Mixtura stanni cum cupro aes nominatur. Olim stannum ex Britannia in terras mediterraneas importabatur.
Proprietates:
- liquidum est super temperaturam 505 K
- liquidum est sub temperaturam 2.533 K
- massa specifica: 7,29 g/cm3
Notae
Bibliographia
Nexus interni
Nexus externi
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
