Template:Infobox manganese

Manganese, ₂₅Mn

Manganese
Pronunciation	/ˈmæŋɡəniːz/ ​(MANG-gə-neez)
Appearance	silvery metallic
Standard atomic weight Ar, std(Mn)	7001549380430000000♠54.938043(2)
Manganese in the periodic cairt
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium - ↑ Mn ↓ Tc chromium ← manganese → iron
Atomic nummer (Z)	25
Group	group 7
Period	period 4
Block	d-block
Element category	Transeetion metal
Electron confeeguration	[Ar] 3d5 4s2
Electrons per shell	2, 8, 13, 2
Pheesical properties
Phase at STP	solit
Meltin pynt	1519 K ​(1246 °C, ​2275 °F)
Bylin pynt	2334 K ​(2061 °C, ​3742 °F)
Density (near r.t.)	7.21 g/cm3
when liquid (at m.p.)	5.95 g/cm3
Heat o fusion	12.91 kJ/mol
Heat o vapourisation	221 kJ/mol
Molar heat capacity	26.32 J/(mol·K)
Vapour pressur P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1228 1347 1493 1691 1955 2333
Atomic properties
Oxidation states	−3, −2, −1, 0, +1, +2, +3, +4, +5, +6, +7 (dependin on the oxidation state, an acidic, basic, or amphoteric oxide)
Electronegativity	Pauling scale: 1.55
Ionisation energies	(more)
Atomic radius	empirical: 127 pm
Covalent radius	139±5 (low spin), 161±8 (high spin) pm
Colour lines in a spectral range Spectral lines o manganese
Ither properties
Naitural occurrence	primordial
Creestal structur	​body-centred cubic (bcc)
Speed o soond thin rod	5150 m/s (at 20 °C)
Thermal expansion	21.7 µm/(m·K) (at 25 °C)
Thermal conductivity	7.81 W/(m·K)
Electrical resistivity	1.44 µ Ω·m (at 20 °C)
Magnetic orderin	paramagnetic
Young's modulus	198 GPa
Bulk modulus	120 GPa
Mohs haurdness	6.0
Brinell haurdness	196 MPa
CAS Nummer	7439-96-5
History
Diskivery	Torbern Olof Bergman (1770)
First isolation	Johann Gottlieb Gahn (1774)
Main isotopes o manganese
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct 52Mn syn 5.591 d ε 52Cr β+ 52Cr γ - 53Mn trace 3.74×106 y ε 53Cr 54Mn syn 312.3 d ε 54Cr γ - 55Mn 100% stable

style="text-align:left"| data m.p. cat
	in	calc from C	diff	report	ref
C	1246	—	—
K	1519	1519	0
F	2275	2275	0
WD	2271 !2271 Fahrenheit 1243 Celsius
input	C: 1246, K: 1519, F: 2275
comment

style="text-align:left"| data b.p. cat
	in	calc from C	diff	report	ref
C	2061	—	—
K	2334	2334	0
F	3742	3742	0
WD	3564 !3564 Fahrenheit 1961 Celsius
input	C: 2061, K: 2334, F: 3742
comment

References

Thir references will appear in the airticle, but this list appears anerly on this page.