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Manganese is a chemical element; it has the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. First isolated in the 1770s, manganese is a transition metal with many industrial alloy uses, particularly in stainless steels in which it improves strength, workability, and resistance to…
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Manganese | 52Mn | synth | 1.00 | infobox |
| Manganese | 53Mn | trace | 1.00 | infobox |
| Manganese | 54Mn | synth | 1.00 | infobox |
| Manganese | 55Mn | 100% | 1.00 | infobox |
| Manganese | Appearance | silvery metallic | 1.00 | infobox |
| Manganese | at T (K) | 1228 | 1.00 | infobox |
| Manganese | Atomic number (Z) | 25 | 1.00 | infobox |
| Manganese | Atomic radius | empirical: 127 pm | 1.00 | infobox |
| Manganese | Block | d-block | 1.00 | infobox |
| Manganese | Boiling point | 2334 K (2061 °C, 3742 °F) | 1.00 | infobox |
| Manganese | Brinell hardness | 196 MPa | 1.00 | infobox |
| Manganese | Bulk modulus | 120 GPa | 1.00 | infobox |
| Manganese | CAS Number | 7439-96-5 | 1.00 | infobox |
| Manganese | Covalent radius | Low spin: 139±5 pm High spin: 161±8 pm | 1.00 | infobox |
| Manganese | Crystal structure | α-Mn: body-centered cubic (bcc) (cI58) | 1.00 | infobox |
| Manganese | Density (at 20° C) | 7.476 g/cm3 | 1.00 | infobox |
| Manganese | Discovery | Carl Wilhelm Scheele (1774) | 1.00 | infobox |
| Manganese | Electrical resistivity | 1.44 µΩ⋅m (at 20 °C) | 1.00 | infobox |
| Manganese | Electron configuration | [Ar] 3d5 4s2 | 1.00 | infobox |
| Manganese | Electronegativity | Pauling scale: 1.55 | 1.00 | infobox |
| Manganese | Electrons per shell | 2, 8, 13, 2 | 1.00 | infobox |
| Manganese | First isolation | Johann Gottlieb Gahn (1774) | 1.00 | infobox |
| Manganese | Group | group 7 | 1.00 | infobox |
| Manganese | Heat of fusion | 12.91 kJ/mol | 1.00 | infobox |
| Manganese | Heat of vaporization | 221 kJ/mol | 1.00 | infobox |
| Manganese | Ionization energies | 1st: 717.3 kJ/mol | 1.00 | infobox |
| Manganese | Ionization energies | 2nd: 1509.0 kJ/mol | 1.00 | infobox |
| Manganese | Ionization energies | 3rd: 3248 kJ/mol | 1.00 | infobox |
| Manganese | Ionization energies | (more) | 1.00 | infobox |
| Manganese | Lattice constant | a = 891.16 pm (at 20 °C) | 1.00 | infobox |
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