Manganèse (Mn)

Propriétés générales

Symbole Mn
Numéro atomique 25
Masse atomique 54.938045
Groupe
7 (Famille du manganèse)
VIIA (IUPAC), VIIB (CAS)
Solid, Paramagnetic, Conductor, Transition Metal, Metal, Stable, Natural
Période 4
Bloc d

Propriétés physiques

Densité 7.43 g/cm3
Volume atomique 7.39 cm3/mole
Rayon atomique 1.35 angstroms
Rayon de covalence 139 pm
Crust Abundance 0.11%
Crystal Structure Cubic: Body centered
Color Silver

Énergie

Électronégativité 1.6 (Échelle de Pauling)
Affinité électronique 0 kJ/mol
Énergie de première 717 kJ/mol
2e Ionization Energy 1509.0 kJ/mol
3e Ionization Energy 3248 kJ/mol
4e Ionization Energy 4940 kJ/mol
5e Ionization Energy 6990 kJ/mol
6e Ionization Energy 9220 kJ/mol
7e Ionization Energy 11500 kJ/mol
8e Ionization Energy 18770 kJ/mol
9e Ionization Energy 21400 kJ/mol
10e Ionization Energy 23960 kJ/mol
11e Ionization Energy 27590 kJ/mol
12e Ionization Energy 30330 kJ/mol
13e Ionization Energy 33150 kJ/mol
14e Ionization Energy 38880 kJ/mol
15e Ionization Energy 41987 kJ/mol
16e Ionization Energy 109480 kJ/mol
17e Ionization Energy 118100 kJ/mol
18e Ionization Energy 127100 kJ/mol
19e Ionization Energy 138600 kJ/mol
20e Ionization Energy 148500 kJ/mol
21e Ionization Energy 158600 kJ/mol
22e Ionization Energy 172500 kJ/mol
23e Ionization Energy 181380 kJ/mol
24e Ionization Energy 785450 kJ/mol
25e Ionization Energy 827067 kJ/mol
Capacité thermique 0.48 J g−1 K−1
Conductivité thermique 7.82 W·m−1·K−1

Électrons et Oxydation

États d’oxydation +2,3,4,6,7
Électrons par couche 2 8 15
Configuration électronique [Ar] 4s2 3d5
1s2 2s2 2p6 3s2 3p6 4s2 3d5
Diagrammes d’orbitales
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿ 
↿ 
↿ 
↿ 
↿ 
4s
↿⇂
4p
 
 
 
4d
 
 
 
 
 
4f
 
 
 
 
 
 
 

Nuclear

Radioactif Non

Média

Modèle planétaire de Bohr de Manganèse (Mn)
Description
Hard, brittle, gray-white metal with a pinkish tinge. Rusts like iron in moist air.
Uses
Used in steel, batteries and ceramics. The steel in railroad tracks can contain as much as 1.2% manganese. It is crucial to the effectiveness of vitamin B1.
Sources
Most abundant ores are pyrolusite (MnO2), psilomelane [(Ba,H2O)2Mn5O10] and rhodochrosite (MnCO3). Pure metal produced by mixing MnO2 with powered Al and ignited in a furnace.
Pronounciation (English)
MAN-ge-nees

Traductions

Afrikaans Mangaan
Aragonese Manganeso
العربية منجنيز
Armãneashte Manganu
asturianu Manganesiu
azərbaycan dili Manqan
български Манган
বাংলা ম্যাঙ্গানিজ
brezhoneg Manganez
bosanski Mangan
Byelorussian Марганец
Cebuano Manganeso
čeština Mangan
Chuvash Марганец
Cymraeg Manganès
dansk Mangan
Deutsch Mangan
Ελληνικά Μαγγανιο
English Manganese
esperanto Mangano
español Manganesio
eesti Mangaan
euskara Manganesoa
فارسی منگنز
suomi Mangaani
føroyskt Mangan
français Manganèse
furlan Manganês
West-Frysk Mangaan
Gaeilge Mangainéis
Gàidhlig Mangaineis
galego Manganeso
ગુજરાતી મૅંગેનીઝનો
Gaelg Manganais
Hakka Chinese Màng (錳)
עברית מנגן
हिन्दी मैंगनीज
hrvatski Mangan
magyar Mangán
հայերեն Մանգան
Indonesia Manggan
íslenska Mangan
italiano Manganese
日本語 マンガン
ქართული მარგანეცი
کٲشُر Mangan
қазақ тілі Марганец
한국어 망간, 2망가니즈
Kurdish Manganez
Komi Марганец
kernewek Manganus
кыргызча Марганец
Latin Manganum
Lëtzebuergesch Mangan
Lombard Manganées
lingála Manezu
lietuvių Manganas
latviešu Mangāns
Mari Марганец
Maori Manganese
македонски Манган
മലയാളം മാംഗനീസ്
монгол Манган
Мокшан Марганцае
Bahasa Melayu Mangan
Malti Manganiż
Nahuatl Manganesio
Nederlands Mangaan
norsk Mangan
Occitan Manganès
ирон Марганец
polski Mangan
português Manganésio
Runasimi Manganisu
română Mangan
русский Марганец
slovenčina Mangán
slovenščina Mangan
Samoan Manganimi
Samogitian Mangans
shqip Mangan
српски Манган
Southern Sotho Mankanese
svenska Mangan
Kiswahili Manganisi
தமிழ் மங்கனீசு
Tajik Манган
ไทย แมงกานีส
Türkçe Mangan
ئۇيغۇرچە مانگان
українська Марганець
o‘zbek Marganets
Tiếng Việt Mangan
Võro Mangaan
中文

Histoire

Découvert en
1774
Découvert par
Johann Gahn
Découvert à/au/dans
Sweden
Étymologie
From the Latin word "magnes" meaning "magnet", or "magnesia nigri" meaning "black magnesia"