Kemiskt grundämne engelska
Hem / Historia, Vetenskap & Forskning / Kemiskt grundämne engelska
German chemist Andreas Marggraf normally gets credit for discovering pure metallic zinc 1746, even though Swedish chemist Anton von Swab had distilled zinc from calamine four years previously.
| CAS Number | 7440-66-6 |
| ChemSpider ID | 22430 |
| EC number | 231-175-3 |
| PubChem CID Number | 23994 |
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Andra användningsområden är i batterier och legering, som exempelvis mässing.
Upptäckten av brom
Bromine was discovered independently by two chemists, Carl Jacob Löwig and Antoine Balard, in 1825 and 1826, respectively. Zink är ett vitalt mineralämne, nödvändigt för allt liv. Balard distilled the bromine from a solution of seaweed ash saturated with chlorine.Enzymer med en zinkatom i sitt reaktiva centrum är vitt spridda inom biokemin, exempelvis alkoholdehydrogenas hos människan. The seaweed was used to produce iodine, but also contained bromine. All this is possible thanks to the income generated by advertising and subscriptions.
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They all work towards a single goal: to provide you with rich, high-quality content.De arbetar alla mot ett enda mål: att förse dig med rikt innehåll av hög kvalitet. Zinkproduktion innefattar rostning, lakning och slutligen pyrometallurgisk vinning eller elektrovinning. Identified as a distinct metal in the Rasaratna Samuccaya around the 14th century of the Christian era and by the alchemist Paracelsus in 1526.
| Smältpunkt | 692.68 K 419.53 °C 787.154 °F |
| Kokpunkt | 1180 K 906.85 °C 1664.33 °F |
| Ångbildningsvärme | 115.3 kJ/mol |
| Elektronegativitet (Paulingskalan) | 1.65 |
| Elektronaffinitet | -58 kJ/mol |
| Oxidationstal | −2, 0, +1, +2 (an amphoteric oxide) |
| Jonisationspotential |
|
Elektronkonfiguration Kortfattad konfiguration | [Ar] 3d10 4s2 |
Elektronkonfiguration Full konfiguration | 1s2 2s2 2p6 3s2 3p6 3d1 4s2 |
Elektronkonfigurationsdiagram | |
| Elektroner per skal | 2, 8, 18, 2 |
| Valenselektroner | 2 |
| Valency-elektroner | 2 |
| Bohrs atommodell | Figur: Skaldiagram över Zink (Zn) atom. |
Orbitaldiagram |
| Upptäckt | Indian metallurgists (1000 f.Kr.) |
| Första isolation | Andreas Sigismund Marggraf (1746) |
| Namngivare | Paracelsus |
| Recognized as a unique metal by | Rasaratna Samuccaya (1300) |
Upptäckten av zink Used as a component of brass since antiquity (before 1000 BC) by Indian metallurgists, but its true nature was not understood in ancient times.The publication of the results was delayed and Balard published his results first. The properties of the resulting substance were intermediate between those of chlorine and iodine; thus he tried to prove that the substance was iodine monochloride (ICl), but after failing to do so he was sure that he had found a new element and named it muride, derived from the Latin word muria ("brine"). | |