Platin

78
Pt
Gruppe
10
Periode
6
Block
d
Protonen
Elektronen
Neutronen
78
78
117
Generelle Eigenschaften
Ordnungszahl
78
Atommasse
195,084
Massenzahl
195
Kategorie
Übergangsmetalle
Farbe
Grau
Radioaktiv
Nein
Aus dem Spanischen platina (Silber)
Kristallstruktur
Kubisch flächenzentriert
Geschichte
Platinum was first used by pre-Columbian South American natives to produce artifacts.

Antonio de Ulloa published his findings about platinum in 1748, but Sir Charles Wood also investigated the metal in 1741.

First reference to it as a new metal was made by William Brownrigg in 1750.
Elektronen pro Schale
2, 8, 18, 32, 17, 1
Elektronenkonfiguration
[Xe] 4f14 5d9 6s1
Pt
Platinum exists in higher abundances on the Moon and in meteorites
Physikalische Eigenschaften
Aggregatzustand
Fest
Dichte
21,45 g/cm3
Schmelzpunkt
2041,45 K | 1768,3 °C | 3214,94 °F
Siedepunkt
4098,15 K | 3825 °C | 6917 °F
Schmelzwärme
20 kJ/mol
Verdampfungswärme
490 kJ/mol
Spezifische Wärmekapazität
0,133 J/g·K
Häufigkeit in der Erdkruste
3,7×10-6%
Häufigkeit im Universum
5×10-7%
A
Danksagungen für Bilder: Wikimedia Commons (Alchemist-hp)
A native platinum nugget
CAS-Nummer
7440-06-4
PubChem CID Number
23939
Atomeigenschaften
Atomradius
139 pm
Kovalenter Radius
136 pm
Elektronegativität
2,28 (Pauling-Skala)
Ionisierungsenergie
8,9587 eV
Molares Volumen
9,10 cm3/mol
Wärmeleitfähigkeit
0,716 W/cm·K
Oxidationszustände
2, 4, 5, 6
Anwendung
The most common use of platinum is as a catalyst in chemical reactions.

Platinum is used in jewelry, decoration and dental work.

Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.

Platinum-based anodes are used in ships, pipelines, and steel piers.
Platinum is considered to be non-toxic
Isotope
Stabile Isotope
192Pt, 194Pt, 195Pt, 196Pt, 198Pt
Instabile Isotope
166Pt, 167Pt, 168Pt, 169Pt, 170Pt, 171Pt, 172Pt, 173Pt, 174Pt, 175Pt, 176Pt, 177Pt, 178Pt, 179Pt, 180Pt, 181Pt, 182Pt, 183Pt, 184Pt, 185Pt, 186Pt, 187Pt, 188Pt, 189Pt, 190Pt, 191Pt, 193Pt, 197Pt, 199Pt, 200Pt, 201Pt, 202Pt