Manganisi

Manganese, ₂₅Mn

Manganese
Pípè	/ˈmæŋɡəniːz/ ​(MANG-gə-neez)
Ìhànsójú	silvery metallic
Ìwúwo átọ̀mù Ar, std(Mn)	54.938043(2)
Manganese ní orí tábìlì àyè
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 Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver 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 Gold Mercury (element) Thallium Lead 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 Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson - ↑ Mn ↓ Tc chromium ← manganese → iron
Nọ́mbà átọ̀mù (Z)	25
Ẹgbẹ́	group 7
Àyè	àyè 4
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Ar] 3d5 4s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 13, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1519 K ​(1246 °C, ​2275 °F)
Ígbà ìhó	2334 K ​(2061 °C, ​3742 °F)
Kíki (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	221 kJ/mol
Molar heat capacity	26.32 J/(mol·K)
pressure 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 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.55
energies	(more)
Atomic radius	empirical: 127 pm
Covalent radius	139±5 (low spin), 161±8 (high spin) pm
Spectral lines of manganese
Other properties
Natural occurrence	primordial
Crystal structure	​(bcc)
Speed of sound 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 ordering	paramagnetic
Young's modulus	198 GPa
Bulk modulus	120 GPa
Mohs hardness	6.0
Brinell hardness	196 MPa
CAS Number	7439-96-5
Main isotopes of manganese
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 52Mn syn 5.591 d ε - 52Cr β+ 0.575 52Cr γ 0.7, 0.9, 1.4 - 53Mn trace 3.74 ×106 y ε - 53Cr 54Mn syn 312.3 d ε 1.377 54Cr γ 0.834 - 55Mn 100% 55Mn is stable with 30 neutrons