(Q731)

English

manganese

chemical element, symbol Mn and atomic number 25

  • Mn
  • 25Mn
  • element 25
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Statements

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1774
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Mn
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[Mn]
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25
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[Ar] 3d⁵ 4s²
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0.66 ångström
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0.83 ångström
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0.96 ångström
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0.58 ångström
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0.39 ångström
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0.53 ångström
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0.33 ångström
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0.26 ångström
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0.25 ångström
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7.434038±0.0000012 electronvolt
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NIST Atomic Spectra Database, Ionization Energies (English)
18 September 2026
15.63999±0.00007 electronvolt
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NIST Atomic Spectra Database, Ionization Energies (English)
18 September 2026
33.668±0.012 electronvolt
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NIST Atomic Spectra Database, Ionization Energies (English)
18 September 2026
479.5 joule per kilogram kelvin
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283.26 kilojoule per mole
16.29 kilojoule per mole
173.72 joule per mole kelvin
43.49 joule per mole kelvin
32.01 joule per mole kelvin
7.2±0.01 gram per cubic centimetre
20±1 degree Celsius
2,271±1 degree Fahrenheit
1,243 degree Celsius
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3,564±1 degree Fahrenheit
760±1 torr
1,961 degree Celsius
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0±1 millimetre of mercury
68±1 degree Fahrenheit
23.61 micrometre per metre kelvin
20 degree Celsius
0379
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54.938043±0.000002 dalton
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Standard Atomic Weights of 14 Chemical Elements Revised (English)
19 October 2020
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Manganese
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Manganese
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140 picometre
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150 picometre
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3 October 2026

Identifiers

מנגן (Hebrew)
المنغنيز (Arabic)
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OO9275000
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28 October 2019
MANGANESE, ELEMENTAL (English)
10 May 2021
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Mn | manganese | atomic number 25
a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals (English)
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Mn, manganese, atomic number 25
a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals (English)
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manganese (English)
mangaani (Finnish)
mangána (Northern Sami)