Lanthanum (La)

Sifat-Sifat Umum

Simbol La
Nomor Atom 57
Berat atom 138.90547
Kelompok
3 (keluarga skandium)
IIIA (IUPAC), IIIB (CAS)
Solid, Conductor, Lanthanide, Stable, Natural
Periode 6
Blok f

Media

Kepadatan 6.15 g/cm3
Isipadu Atom 22.5 cm3/mole
Radius Atom 1.38 angstroms
Radius Kovalen 169 pm
Crust Abundance 0.0034%
Crystal Structure Hexagonal
Color Silver

Energi

Elektronegativitas 1.1 (Skala Pauling)
Afinitas Elektron 48 kJ/mol
Ionisasi Energi Pertama 538 kJ/mol
ke2 Ionization Energy 1067 kJ/mol
ke3 Ionization Energy 1850.3 kJ/mol
ke4 Ionization Energy 4819 kJ/mol
ke5 Ionization Energy 5940 kJ/mol
Kapasitas Panas Spesifik 0.19 J g−1 K−1
Konduktivitas Termal 13.5 W·m−1·K−1

Elektron & Oksidasi

Kondisi Oksidisasi 3
Elektron Setiap Kelopak 2 8 18 18 9 2
Konfigurasi Elektron [Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d1 6s2
Diagram Orbital
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4f
 
 
 
 
 
 
 
5s
↿⇂
5p
↿⇂
↿⇂
↿⇂
5d
↿ 
 
 
 
 
5f
 
 
 
 
 
 
 
6s
↿⇂
6p
 
 
 
6d
 
 
 
 
 
6f
 
 
 
 
 
 
 

Nuclear

Radioaktif Tidak

Media

Keplanetan Model Bohr Lanthanum (La)
Description
Soft, silvery-white, malleable, ductile metal.
Uses
It is used in the electodes of high-intensity, carbon-arc lights. Also used in the production of high-grade europium metal. Because it gives glass refractive properties, it is used in expensive camera lenses.
Sources
Found with rare earths in monazite and bastnasite. Monazite sand typicall contains 25% lanthanum.
Pronounciation (English)
LAN-the-nem

Terjemahan

Afrikaans Lantaan
Aragonese Lantán
العربية لنثانوم
Armãneashte Lantan
asturianu Lantanu
azərbaycan dili Lantan
български Лантан
বাংলা ল্যান্থানাম
brezhoneg Lantan
bosanski Lanthanum, ²Lantan
Byelorussian Лантан
Cebuano Lantano
čeština Lanthan
Chuvash Лантан
Cymraeg Lantani
dansk Lanthan
Deutsch Lanthan
Ελληνικά Λανθανιο
English Lanthanum
esperanto Lantano
español Lantano
eesti Lantaan
euskara Lantanoa
فارسی لانتانوم
suomi Lantaani
føroyskt Lanthan
français Lanthane
furlan Lantani
West-Frysk Lanthaan
Gaeilge Lantainam
Gàidhlig Lantanam
galego Lantano
ગુજરાતી લૅન્થેનમનો
Gaelg Lantanum
Hakka Chinese Làn (碲)
עברית לנתן
हिन्दी लाञ्थनम
hrvatski Lantan
magyar Lantán
հայերեն Լանթան
Indonesia Lantanium
íslenska Lantan, ²Lanþan
italiano Lantanio
日本語 ランタン
ქართული ლანთანი
کٲشُر Lantón
қазақ тілі Лантан
한국어 란탄, 2란타넘
Kurdish Lantan
Komi Лантан
kernewek Lanthanum
кыргызча Лантан
Latin Lanthanum
Lëtzebuergesch Lanthan
Lombard Lantàni
lingála Lantani
lietuvių Lantanas
latviešu Lantāns
Mari Лантан
Maori Lanthanum
македонски Лантан
മലയാളം ലാന്തനം
монгол Лантан
Мокшан Лантан
Bahasa Melayu Lanthanum
Malti Lantanum, ²Lantanju
Nahuatl Lantano
Nederlands Lanthaan
norsk Lantan
Occitan Lantan
ирон Лантан
polski Lantan
português Lantâno
Runasimi Lanthanu
română Lantan
русский Лантан
slovenčina Lantán
slovenščina Lantan
Samoan Lantanimi
Samogitian Lantans
shqip Lantan, ²Lanthani
српски Лантан
Southern Sotho Lantanamo
svenska Lantan
Kiswahili Lanthani
தமிழ் லந்தானம்
Tajik Лантан
ไทย แลนทานัม
Türkçe Lantan
ئۇيغۇرچە لانتان
українська Лантан
o‘zbek Lantan
Tiếng Việt Lantan
Võro Lantaan
中文

Sejarah

Ditemukan Di
1839
Ditemukan Oleh
Carl Gustaf Mosander
Ditemukan Pada
Sweden
Asal Kata
From the Greek word "lanthanein" meaning "to lie hidden"