Platinum
78
Pt
Groep
10
Periode
6
Blok
d
Protrone
Elektrone
Neutrone
78
78
117
Algemene Eienskappe
Atoom Nommer
78
Atoommassa
195,084
Massa Nommer
195
Kategorie
Oorgangsmetale
Kleur
Grys
Radioaktief
Nee
From the Spanish word platina, meaning silver
Kristalstruktuur
Gesiggesentreerde kubieke
Geskiendenis
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.
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.
Elektrone per skil
2, 8, 18, 32, 17, 1
Elektronkonfigurasie
[Xe] 4f14 5d9 6s1
Platinum exists in higher abundances on the Moon and in meteorites
Fisiese Eienskappe
Fase
Soliede
Digtheid
21,45 g/cm3
Smeltpunt
2041,45 K | 1768,3 °C | 3214,94 °F
Kookpunt
4098,15 K | 3825 °C | 6917 °F
Heat of Fusion
20 kJ/mol
Heat of Vaporization
490 kJ/mol
Spesifieke Hitte Kapasiteit
0,133 J/g·K
Oorvloed in die aardkors
3,7×10-6%
Oorvloed in die heelal
5×10-7%
CAS Nommer
7440-06-4
PubChem CID Nommer
23939
Atomiese Eienskappe
Atoom radius
139 pm
Kovalente Radius
136 pm
Elektronegatiewiteit
2,28 (Pauling scale)
Ionisasie potensiaal
8,9587 eV
Atoom volume
9,10 cm3/mol
Termiese geleidingsvermoë
0,716 W/cm·K
Oksidasiestate
2, 4, 5, 6
Toepassings
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 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
Stabiele Isotope
192Pt, 194Pt, 195Pt, 196Pt, 198PtOnstabiele 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