Platina, Witgoud† (Pt)

General Properties

Symbol Pt
Atomic Number 78
Atomic Weight 195.084
Group
10 (nickel family)
VIIIA (IUPAC), VIII (CAS)
Solid, Paramagnetic, Conductor, Transition Metal, Metal, Stable, Natural
Period 6
Block d

Physical Properties

Density 21.4 g/cm3
Atomic Volume 9.1 cm3/mole
Atomic Radius 1.39 angstroms
Covalent Radius --
Crust Abundance 3.7E-6%
Crystal Structure Cubic: Face centered
Color Gray

Energy

Electronegativity 2.3 (Pauling Scale)
Electron Affinity 205.3 kJ/mol
1st Ionization Energy 870 kJ/mol
2e Ionization Energy 1791 kJ/mol
Specific Heat Capacity 0.13 J g−1 K−1
Thermal Conductivity 71.6 W·m−1·K−1

Electrons & Oxidation

Oxidation States +4,2
Electrons Per Shell 2 8 18 32 17 1
Electron Configuration [Xe] 4f14 5d9 6s1
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d9 6s1
Orbital Diagram
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4f
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
5s
↿⇂
5p
↿⇂
↿⇂
↿⇂
5d
↿⇂
↿⇂
↿⇂
↿⇂
↿ 
5f
 
 
 
 
 
 
 
6s
↿ 
6p
 
 
 
6d
 
 
 
 
 
6f
 
 
 
 
 
 
 

Nuclear

Radioactive No

Media

Planetary Bohr Model of Platina, Witgoud† (Pt)
Description
Rare, very heavy, soft, silvery-white metal.
Uses
Used in jewelry, to make crucible and special containers and as a catalyst. Used with cobalt to produce very strong magnets. Also to make standard weights and measures. Resists corrosion and acid attacks except aqua regia.
Sources
Produced from deposits of native, or elemental, platinum.
Pronounciation (English)
PLAT-n-em

Translations

Afrikaans Platinum, Witgoud †
Aragonese Platin
العربية بلاتين
Armãneashte Platinã
asturianu Platín
azərbaycan dili Platin
български Платина
বাংলা প্লাটিনাম
brezhoneg Platin
bosanski Platina, ²Platinum
Byelorussian Плаціна
Cebuano Platino
čeština Platina
Chuvash Платина
Cymraeg Platí
dansk Platin
Deutsch Platin
Ελληνικά Λευκοχρυσος
English Platinum
esperanto Plateno
español Platino
eesti Plaatina
euskara Platinoa
فارسی پلاتین
suomi Platina
føroyskt Platin
français Platine
furlan Platin
West-Frysk Platina
Gaeilge Platanam
Gàidhlig Platanam
galego Platino
ગુજરાતી પ્લૅટિનમનો
Gaelg Platinum
Hakka Chinese Pha̍k (鉑)
עברית פלטינה
हिन्दी प्लाटिनम
hrvatski Platina
magyar Platina
հայերեն Պլատին
Indonesia Platina
íslenska Platína
italiano Platino
日本語 白金
ქართული პლატინა
کٲشُر Platina
қазақ тілі Платина
한국어 백금
Kurdish Platîn
Komi Платина
kernewek Platynum
кыргызча Платина
Latin Platinum
Lëtzebuergesch Platin
Lombard Plàtin
lingála Palata
lietuvių Platina
latviešu Platīns
Mari Платина
Maori Platinum
македонски Платина
മലയാളം പ്ലാറ്റിനം
монгол Цагаан алт
Мокшан Сияжа
Bahasa Melayu Platinum
Malti Platinu[m]
Nahuatl Platino
Nederlands Platina, Witgoud†
norsk Platina
Occitan Platin
ирон Платина
polski Platyna
português Platina
Runasimi Qullqiya
română Platină
русский Платина
slovenčina Platina
slovenščina Platina
Samoan Platina
Samogitian Platėna
shqip Platin
српски Платина
Southern Sotho Platinamo
svenska Platina
Kiswahili Platini
தமிழ் பளாட்டினம்
Tajik Платина
ไทย แพลทินัม
Türkçe Platin
ئۇيغۇرچە ئاق ئالتۇن
українська Платина
o‘zbek Platina
Tiếng Việt Platin
Võro Plaatina
中文

History

Discovered In
1735
Discovered By
Antonio de Ulloa
Discovered At
South America
Word Origin
From the Spanish word "platina" meaning "silver"