
Manganese (Mn) is a chemical element of the periodic table, located in the group 7 and the period 4, and has the atomic number 25. It is a hard, silvery-grey transition metal, whose name comes from the Latin word “magnes”, which means magnet. It is the twelfth most abundant element on earth.
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– d block |
FAQs on Manganese Element
Manganese |
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‣ What does manganese look like? Appearance: silvery metallic |
‣ Who discovered manganese and when? Discovery: Carl Wilhelm Scheele (1774) First isolation: Johann Gottlieb Gahn (1774) |
‣ Where is manganese found on the periodic table?![]() Location: Manganese is found in the seventh column of the periodic table, next to the chromium element. |
‣ What is the atomic number of manganese? Atomic number (Z): 25 |
‣ What is the symbol of manganese? Symbol: Mn |
‣ Manganese atomic weight: 54.938043 |
‣ Which block is manganese (mn) located in? Block: d-block |
‣ What group is manganese in on the periodic table? Group: 7 |
‣ In what period is manganese located? Period: 4 |
‣ What is the atomic radius of manganese? Atomic radius: empirical: 127 pm |
‣ Manganese covalent radius: Low spin: 139±5 pm High spin: 161±8 pm |
‣ Manganese Van der Waals radius: 182 pm |
‣ What is manganese melting point? Melting point: 1519 K (1246 °C, 2275 °F) |
‣ What is manganese boiling point? Boiling point: 2334 K (2061 °C, 3742 °F) |
‣ How many electron shells are in manganese? Electrons per shell: 2, 8, 13, 2 |
‣ What is the ground state electron configuration of manganese? Electron configuration: [Ar] 3d5 4s2 |
‣ What is the ionization energy of manganese? Ionization energies: 1st: 717.3 kJ/mol 2nd: 1509.0 kJ/mol 3rd: 3248 kJ/mol |
‣ Is manganese a solid, liquid or gas? Phase (at r.t): solid |
‣ What is the density of manganese? Density (near r.t): 7.21 g/cm3 when liquid (at m.p): 5.95 g/cm3 |
‣ Manganese magnetic ordering: paramagnetic |
‣ Manganese natural occurrence: primordial |
‣ What is the oxidation state of manganese? Oxidation state: +2, +3, +4, +5, +6, +7 |
‣ What’s the electronegativity of manganese? Electronegativity: Pauling scale: 1.55 |
‣ Manganese heat of fusion: 12.91 kJ/mol |
‣ Manganese heat of vaporization: 221 kJ/mol |
‣ Manganese molar heat capacity: 26.32 J/(mol K) |
‣ Manganese molar magnetic susceptibility: (α) +529.0 × 10-6 cm3/mol (293 K) |
‣ Speed of sound in manganese: 5150 m/s (at 20 °C) |
‣ What is the crystal structure of manganese? Crystal structure: body-centered cubic (bcc) |
‣ Thermal expansion of manganese: 21.7 µm/(m.K) (at 25 °C) |
‣ Thermal conductivity of manganese: 7.81 W/(m.K) |
‣ Manganese electrical resistivity: 1.44 µΩ.m (at 20 °C) |
‣ What is the hardness of manganese? Mohs hardness: 6.0 Brinell hardness: 196 MPa |
‣ Young’s modulus of manganese: 198 GPa |
‣ Bulk modulus of manganese: 120 GPa |
‣ Manganese CAS number: 7439-96-5 |
‣ Manganese vapor pressure
Vapor pressure | ||||||
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P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
at T (K) | 1228 | 1347 | 1493 | 1691 | 1955 | 2333 |
‣ How many isotopes does manganese have?
Main isotopes of manganese | ||||
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
52Mn | syn | 5.6 d | ε β+ γ | 52Cr 52Cr – |
53Mn | trace | 3.74 × 106 y | ε | 53Cr |
54Mn | syn | 312.03 d | ε γ | 54Cr – |
55Mn | 100 % | stable |
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