Plutonium (Pu)

General Properties

Symbol Pu
Atomic Number 94
Atomic Weight (244)
Group
(Actinoids)
Solid, Conductor, Actinide, Radioactive, Synthetic
Period 7
Block f

Physical Properties

Density 19.8 g/cm3
Atomic Volume 12.32 cm3/mole
Atomic Radius 1.51 angstroms
Covalent Radius --
Crust Abundance None
Crystal Structure Monoclinic
Color Silver

Energy

Electronegativity 1.3 (Pauling Scale)
Electron Affinity --
1st Ionization Energy 585 kJ/mol
Specific Heat Capacity 0.13 J g−1 K−1
Thermal Conductivity 6.74 W·m−1·K−1

Electrons & Oxidation

Oxidation States +4,3,5,6
Electrons Per Shell 2 8 18 32 24 8 2
Electron Configuration [Rn] 5f6 7s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f6 7s2
Orbital Diagram
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4f
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
5s
↿⇂
5p
↿⇂
↿⇂
↿⇂
5d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
5f
↿ 
↿ 
↿ 
↿ 
↿ 
↿ 
 
6s
↿⇂
6p
↿⇂
↿⇂
↿⇂
6d
 
 
 
 
 
6f
 
 
 
 
 
 
 
7s
↿⇂
7p
 
 
 
7d
 
 
 
 
 
7f
 
 
 
 
 
 
 

Nuclear

Radioactive Yes
Half Life 7.93×107
Lifetime 1.14×108y
Decay Alpha Emission

Media

Planetary Bohr Model of Plutonium (Pu)
Lewis Dot Diagram of Plutonium (Pu)
Description
Silvery-white, extremely radioactive artificially produced metal.
Uses
Used in bombs and reactors. Small quantities are used in thermo-electric generators.
Sources
Found rarely in some uranium ores. Made by bombarding uranium with neutrons.
Pronounciation (English)
ploo-TOE-ni-em

Translations

Afrikaans Plutonium
Aragonese Plutonio
العربية بلوتونيوم
Armãneashte Plutoniumu
asturianu Plutoniu
azərbaycan dili Plutonium
български Плутоний
বাংলা প্লুটোনিয়াম
brezhoneg Plutoniom
bosanski Plutonij[um]
Byelorussian Плутоній
Cebuano Plutonyo
čeština Plutonium
Chuvash Плутони
Cymraeg Plutoni
dansk Plutonium
Deutsch Plutonium
Ελληνικά Πλουτωνιο
English Plutonium
esperanto Plutonio
español Plutonio
eesti Plutoonium
euskara Plutonioa
فارسی پلوتونیم
suomi Plutonium
føroyskt Plutonium
français Plutonium
furlan Plutoni
West-Frysk Plutonium
Gaeilge Plútóiniam
Gàidhlig Plutòiniam
galego Plutonio
ગુજરાતી પ્લુટોનિયમનો
Gaelg Plutonium
Hakka Chinese Pu (鈽)
עברית פלוטוניום
हिन्दी प्लूटोनियम
hrvatski Plutonij
magyar Plutónium
հայերեն Պլուտոնիում
Indonesia Plutonium
íslenska Plúton
italiano Plutonio
日本語 プルトニウム
ქართული პლუტონიუმი
کٲشُر Plutón
қазақ тілі Плутоний
한국어 플루토늄
Kurdish Plutonyûm
Komi Плутоний
kernewek Plutonyum
кыргызча Плутоний
Latin Plutonium
Lëtzebuergesch Plutonium
Lombard Plütòni
lingála Putonu
lietuvių Plutonis
latviešu Plutonijs
Mari Плутоний
Maori Plutonium
македонски Плутониум
മലയാളം പ്ലൂട്ടോണിയം
монгол Плутони
Мокшан Плутони
Bahasa Melayu Plutonium
Malti Plutonju[m]
Nahuatl Mictlāntēuctepoztli
Nederlands Plutonium
norsk Plutonium
Occitan Plutòni
ирон Плутоний
polski Pluton
português Plutónio
Runasimi Plutonyu
română Plutoniu
русский Плутоний
slovenčina Plutonium
slovenščina Plutonij
Samoan Plutonimi
Samogitian Plotuonis
shqip Plutonium
српски Плутонијум
Southern Sotho Plutoniamo
svenska Plutonium
Kiswahili Plutoni
தமிழ் புலூட்டோனியம்
Tajik Плутоний
ไทย พลูโทเนียม
Türkçe Plutonyum
ئۇيغۇرچە پلوتونىي
українська Плутоній
o‘zbek Plutoniy
Tiếng Việt Plutoni
Võro Plutoonium
中文

History

Discovered In
1940
Discovered By
Glenn T. Seaborg , J. W. Kennedy, E. M. McMillan, A. C. Wahl
Discovered At
USA
Word Origin
Named after the planet "Pluto"