کينډۍ:Infobox manganese

Manganese,  ₂₅Mn

A rough fragment of lustrous silvery metal
عمومي خواص
Pronunciation	/ˈmæŋɡəniːz/ MANG-gə-neez
Appearance	silvery metallic
Manganese په دوراني جدول کې
– ↑ Mn ↓ Tc chromium ← manganese → iron ‍
اټومي شمیره (Z)	25
گروپ, پیریود	group 7, period 4
بلاک	d-block
Element category	transition metal
معياري اټومي وزن (Ar)	کينډۍ:Val
Electron configuration	[Ar] 3d5 4s2
Electrons per shell	2, 8, 13, 2
فزیکي خواص
حالت (at STP)	جامد
دويلې کيدو ټکى	1519 K ​(1246 °C, ​2275 °F)
يشنا ټکی	2334 K ​(2061 °C, ​3742 °F)
Density near r.t.	7.21 g/cm3
when liquid, at m.p.	5.95 g/cm3
Heat of fusion	12.91 kJ/mol
Heat of vaporization	221 kJ/mol
Molar heat capacity	26.32 J/(mol·K)
Vapor pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1228 1347 1493 1691 1955 2333
اټومي خواص
Oxidation states	7, 6, 5, 4, 3, 2, 1, −1, −2, −3 ​acidic, basic or amphoteric; depending on the oxidation state
Electronegativity	Pauling scale: 1.55
Ionization energies	1st: 717.3 kJ/mol 2nd: 1509.0 kJ/mol 3rd: 3248 kJ/mol (more)
Atomic radius	empirical: 127 pm
Covalent radius	Low spin: 139±5 pm High spin: 161±8 pm
Miscellanea
Crystal structure	​body-centered cubic (bcc) Body-centered cubic crystal structure for manganese
Speed of sound thin rod	5150 m/s (at 20 °C)
Thermal expansion	21.7 µm/(m·K) (at 25 °C)
د تودوخې تېرېدنه	7.81 W/(m·K)
Electrical resistivity	1.44 µΩ·m (at 20 °C)
Magnetic ordering	paramagnetic
Magnetic susceptibility (χmol)	(α) +529.0·10−6 cm3/mol (293 K)
Young's modulus	198 GPa
Bulk modulus	120 GPa
Mohs hardness	6.0
Brinell hardness	196 MPa
CAS Number	7439-96-5
History
Discovery	Carl Wilhelm Scheele (1774)
First isolation	Johann Gottlieb Gahn (1774)
Main isotopes of manganese
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct 53Mn trace 3.74×106 y ε 53Cr 55Mn 100% stable

Element navigation

PTmanganesePT

Cr ←

iso 25Mn ibox    wd:Q731

→ Fe

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