Elements
25

Mn

Manganese

Manganese (Mn) is a grey white metal that has the atomic number 25 in the periodic table. It is a Transition metal and located in Group 7 of the periodic table. It has the symbol Mn.

Manganese like many other transition metals is not found as a free element in nature, instead bound to other elements in ores. Manganese is named after the region of Magnesia in Greece where the name is shared with the metal Magnesium. It comes from the ore Pyrolusite which was used in 1740 by the German chemist Johann Heinrich Pott. The first isolation of metallic manganese was during 1770 by Ignatius Gottfried Kaim. Manganese is used photosynthesis and is vitally important in the production of free oxygen. It is not so important in human biology. Manganese has many uses but is mainly used in the production of steel in alloying. This was first recognised in 1856 the British engineer Robert Forester Mushet used it to improve the malleability of steel. It is located in Group 7 and it has a melting point of 1246°c and a boiling point of 2061°c being a solid metal at room temperature.

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FAQ's

What is the Melting Point for Manganese?

Manganese has a Melting Point of 1246°F, meaning at 1246°F it will turn to a liquid.

What is the Boiling Point for Manganese?

Manganese has a Boiling Point of 2062°F, meaning at 2062°F it will turn to a Gas.

What is the Electronegativity of Manganese?

Manganese's Electronegativty is 1.55. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Manganese?

Manganese has a Heat of Vaporization of 226 kJ/mol.

Uses

Used in steel, batteries and ceramics. The steel in railroad tracks can contain as much as 1.2% manganese. It is crucial to the effectiveness of vitamin B1.

Sources

Most abundant ores are pyrolusite (MnO2), psilomelane [(Ba,H2O)2Mn5O10] and rhodochrosite (MnCO3). Pure metal produced by mixing MnO2 with powered Al and ignited in a furnace.

25
Protons
25
Electrons
30
Neutrons

Mn

Element Symbol
Mn
Atomic Weight
54.938
Atomic Number
25
State
Solid
Melting Point
Unknown
1246
°C
Boiling Point
2062
Unknown
°C
Heat of Vaporization
226
Unknown
kJ/mol
Crystal Structure
Cubic: Body centered
Thermoconductivity
0.0782
Unknown
W/cmK
Shells
2,8,13,2
Group
Transition Metal
Period
4
Block
D Block
Orbitals
[Ar] 3d5 4s2
Coefficient of Thermal Expansion
21.7 10^-6 K^-1
Covalent Radius
1.17 Å
Density at 293K
7.43 g/cm³
Electrical Conductivity
0.00695 10^6/cm ohm
First Ionization Potential
7.4340 V
Second Ionization Potential
15.64 V
Third Ionization Potential
33.667 V
Ionic Radius
.67 (+2) Å
Oxydation States
7,6,4,(2),3
Lattice Parameter
8.9142 Å
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

MAN-ge-nees

Discovered by

Johann Gahn

Discovery date

1774

Orbital configuration
2,8,13,2

Download the Periodic Table

Explore Other Transition Metals

186.207
75

Re

Rhenium
58.933
27

Co

Cobalt
190.23
76

Os

Osmium
270
105

Db

Dubnium
65.38
30

Zn

Zinc
107.868
47

Ag

Silver
92.906
41

Nb

Niobium
91.224
40

Zr

Zirconium
101.07
44

Ru

Ruthenium
178.49
72

Hf

Hafnium
44.956
21

Sc

Scandium
50.942
23

V

Vanadium
58.693
28

Ni

Nickel
112.414
48

Cd

Cadmium
97
43

Tc

Technetium
196.967
79

Au

Gold
47.867
22

Ti

Titanium
270
107

Bh

Bohrium
285
112

Cn

Copernicium
195.084
78

Pt

Platinum
267
104

Rf

Rutherfordium
51.996
24

Cr

Chromium
192.217
77

Ir

Iridium
200.592
80

Hg

Mercury
270
108

Hs

Hassium
180.948
73

Ta

Tantalum
88.906
39

Y

Yttrium
95.95
42

Mo

Molybdenum
102.905
45

Rh

Rhodium
269
106

Sg

Seaborgium
106.42
46

Pd

Palladium
63.546
29

Cu

Copper
55.845
26

Fe

Iron
183.84
74

W

Tungsten
Transition metal is any of various chemical elements that have valence electrons (electrons that can participate in the formation of chemical bond) in two shells instead of only one. They form group 3 (IIIb) through group 12 (IIb).
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