5 Characteristics of manganese

Manganese is a silver metal, similar to iron, though much more fragile, in alloy with it can produce very hard steels and with resistance to corrosion.

Characteristics of manganese

  • It is used in steel alloys.
  • His atomic number is 25.
  • It is a transition metal of grayish white.
  • It’s hard and fragile, oxidable and ferromagnetic if treated.
  • You have the following numbers. oxidation or valedances: 2,3,4,6 and 7 although sometimes found composed with valids from 1 to 7.
  • In the periodic table you are It lies between chromium and iron and has similar properties to these.
  • It oxidizes easily in the presence of oxygen.
  • It’s very reactive, though in solid state reacts slowly, as dust can react strongly.

Physical and chemical properties of manganese

  • Series Chemical: Transition metals.
  • Group, period, block: 7, 4, d.
  • Mass atomic: 54,938049 u.
  • Settings electronics: [Ar]3d54s2.
  • Electrons by level: 2, 8, 13, 2.
  • Radio medium: 140 pm
  • Electronegativity: 1.55.
  • Heat specific: 480 J/(K.kg).
  • Conductivity electric: 0.695 – 106 S/m.
  • Conductivity Thermal: 7.82 W/(K.m).
  • Density: 7430 kg/m3
  • Entalpy Merger: 12,05 kJ/mol.
  • Entalpy vaporization: 226 kJ/mol.
  • Point of boiling: 2061 C.
  • Point fusion: 1246 C.
  • Speed sound: 5150 m/s at 293.15 K (20oC).

 

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