Holmium (Ho)

General Properties

Symbol Ho
Atomic Number 67
Atomic Weight 164.93032
Group
(Lanthanoids)
Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural
Period 6
Block f

Physical Properties

Density 8.8 g/cm3
Atomic Volume 18.7 cm3/mole
Atomic Radius 1.79 angstroms
Covalent Radius --
Crust Abundance 0.00012%
Crystal Structure Hexagonal
Color Silver

States

Melting Point 1474.0 °C
Boiling Point 2700.0 °C
Neel Point 132.K
Heat of Fusion 11.06 kJ/mol
Heat of Vaporization 251.04 kJ/mol

Energy

Electronegativity 1.2 (Pauling Scale)
Electron Affinity 50 kJ/mol
1st Ionization Energy 581 kJ/mol
2nd Ionization Energy 1140 kJ/mol
3rd Ionization Energy 2204 kJ/mol
4th Ionization Energy 4100 kJ/mol
Specific Heat Capacity 0.165 J g−1 K−1
Thermal Conductivity 16.2 W·m−1·K−1

Electrons & Oxidation

Oxidation States 3
Electrons Per Shell 2 8 18 29 8 2
Electron Configuration [Xe] 4f11 6s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f11 6s2
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 Holmium (Ho)
Lewis Dot Diagram of Holmium (Ho)
Description
Fairly soft, malleable, lustrous, silvery metal.
Uses
It has very few practical applications; however, it has some unusual magnetic properties that offer some hope for future applications.
Sources
Occurs in gadolinite. Most often from monazite which is often 50% rare earth and typically 0.05% holmium.
Pronounciation (English)
HOLE-mi-em

Translations

Afrikaans Holmium
Aragonese Olmio
العربية هلميوم
Armãneashte Holmiumu
Asturian Holmiu
azərbaycan Holmium
български Холъмий
বাংলা হলমিয়াম
brezhoneg Holmiom
bosanski Holmij[um]
Byelorussian Гольмій
Cebuano Holmyo
čeština Holmium
Chuvash Голъми
Cymraeg Holmi
dansk Holmium
Deutsch Holmium
Ελληνικά Όλμιο
English Holmium
esperanto Holmio
español Hólmio
eesti Holmium
euskara Holmioa
فارسی هولمیم
suomi Holmium
føroyskt Holmium
français Holmium
Friulian Olmi
Western Frisian Holmium
Gaeilge Hoilmiam
Scottish Gaelic Hoilmiam
galego Holmio
ગુજરાતી હોમિયમનો
Gaelg Holmium
Hakka Fó (鈥)
עברית הולמיום
हिंदी होल्मियम
hrvatski Holmij
magyar Holmium
հայերեն Հոլմիում
Bahasa Indonesia Holmium
íslenska Holmín
italiano Olmio
日本語 ホルミウム
ქართული ჰოლმიუმი
کٲشُر Hòlm
қазақ тілі Голъмий
한국어 홀뮴
Kurdish Holmiyûm
Komi Голъмий
kernewek Holmyum
кыргызча Голъмий
Latin Holmium
Luxembourgish Holmium
Lombard Úlmi
lingála Olimu
lietuvių Holmis
latviešu Holmijs
Mari Голъмий
Maori Holmium
македонски Холмиум
മലയാളം ഹോമിയം
монгол Гольми
Мокшан Холми
Bahasa Melayu Holmium
Malti Holmjum, ²Olmju
Nahuatl Holmio
Nederlands Holmium
norsk Holmium
Occitan Òlmi
Ossetic Голъмий
polski Holm
português Hólmio
Quechua Holmyu
română Holmiu
русский Гольмий
slovenčina Holmium
slovenščina Holmij
Samoan Holmimi
Samogitian Holmis
Shqip Holmium
Српски Холмијум
Southern Sotho Holmiamo
svenska Holmium
Kiswahili Homi
தமிழ் ஹொல்மியம்
Tajik Голъмий
ไทย โฮลเมียม
Türkçe Holmiyum
Uyghur گولمىي
українська Голъмій
oʻzbekcha Golmiy
Tiếng Việt Holmi, Honmi
Võro Holmium
中文

History

Discovered In
1878
Discovered By
J. L. Soret and Delafontaine
Discovered At
Switzerland
Word Origin
From the Greek word "Holmia" meaning "Sweden"