Lutetium (Lu)

General Properties

Symbol Lu
Atomic Number 71
Atomic Weight 174.967
Group
(Lanthanoids)
Solid, Conductor, Transition Metal, Metal, Stable, Natural
Period 6
Block d

Physical Properties

Density 9.84 g/cm3
Atomic Volume 17.8 cm3/mole
Atomic Radius 1.75 angstroms
Covalent Radius --
Crust Abundance 0.000056%
Crystal Structure Hexagonal
Color Silver

Energy

Electronegativity 1.3 (Pauling Scale)
Electron Affinity 50 kJ/mol
1st Ionization Energy 524 kJ/mol
2e Ionization Energy 1340 kJ/mol
3e Ionization Energy 2022.3 kJ/mol
4e Ionization Energy 4370 kJ/mol
5e Ionization Energy 6445 kJ/mol
Specific Heat Capacity 0.15 J g−1 K−1
Thermal Conductivity 16.4 W·m−1·K−1

Electrons & Oxidation

Oxidation States 3
Electrons Per Shell 2 8 18 32 9 2
Electron Configuration [Xe] 6s2 4f14 5d1
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s2 4f14 5d1
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 Lutetium (Lu)
Lewis Dot Diagram of Lutetium (Lu)
Description
Silvery-white, hard, dense, rare earth metal.
Uses
It has no practical applications.
Sources
Found with ytterbium in gadolinite and xenotime. Usually obtained from monazite sand which is ofter 50% rare earth by weight and 0.003% lutetium.
Pronounciation (English)
loo-TEE-shi-em

Translations

Afrikaans Lutetium
Aragonese Lutezio
العربية لوتيتيوم
Armãneashte Lutetsiumu
asturianu Luteciu
azərbaycan dili Lutesium
български Лютеций
বাংলা লুটেসিয়াম
brezhoneg Lutesiom
bosanski Lutetij[um]
Byelorussian Лютэцый
Cebuano Lutesyo
čeština Lutecium
Chuvash Лютеци
Cymraeg Luteci
dansk Lutetium
Deutsch Lutetium
Ελληνικά Λουτετσιο
English Lutetium
esperanto Lutecio
español Lutécio
eesti Luteetsium
euskara Lutezioa
فارسی لوتتیم
suomi Lutetium
føroyskt Lutetium
français Lutécium
furlan Lutezi
West-Frysk Lutetium
Gaeilge Lúitéitiam
Gàidhlig Luitèitiam
galego Lutecio
ગુજરાતી લૂટીશિયમનો
Gaelg Lootaiçhum
Hakka Chinese Liu (鎦)
עברית לוטטיום
हिन्दी लुटेटियम
hrvatski Lutecij
magyar Lutécium
հայերեն Լուտեցիում
Indonesia Lutetium
íslenska Lútesín
italiano Lutezio
日本語 ルテニウム
ქართული ლუტეციუმი
کٲشُر Lutet
қазақ тілі Лютеций
한국어 루테튬
Kurdish Lutesyûm
Komi Лютеций
kernewek Lutetyum
кыргызча Лютеций
Latin Lutetium
Lëtzebuergesch Lutetium
Lombard Lütezzi
lingála Lutetu
lietuvių Liutecis
latviešu Lutēcijs
Mari Лютеций
Maori Lutetium
македонски Лутециум
മലയാളം ലുറ്റീഷ്യം
монгол Лютеци
Мокшан Лтети
Bahasa Melayu Lutetium
Malti Lutizjum, ²Lutezju
Nahuatl Lutecio
Nederlands Lutetium
norsk Lutetium
Occitan Luteci
ирон Лютеций
polski Lutet
português Lutécio
Runasimi Lutesyu
română Luteţiu
русский Лютеций
slovenčina Lutecium
slovenščina Lutecij
Samoan Lutetimi
Samogitian Lotecis
shqip Lutec, ²Lutetiumi
српски Лутецијум
Southern Sotho Lutetiamo
svenska Lutetium
Kiswahili Luteti
தமிழ் லியுதேத்தியம்
Tajik Лютеций
ไทย ลูทีเชียม
Türkçe Lutesyum
ئۇيغۇرچە لۇتېتسىي
українська Лютецій
o‘zbek Lyutetsiy
Tiếng Việt Lutexi
Võro Luteetsium
中文

History

Discovered In
1907
Discovered By
Georges Urbain and Carl Auer von Welsbach
Discovered At
France, Germany
Word Origin
From the Greek word "Lutetia" meaning "Paris"