Mn Manganese – Element Information, Facts, Properties, Trends,Uses, Comparison with other elements

25
Mn
Manganese

Manganese

Element 25 of Periodic table is Manganese with atomic number 25, atomic weight 54.938049. Manganese, symbol Mn, has a Body Centered Cubic structure and Silver color. Manganese is a transition metal element. Know everything about Manganese Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

25 Mn - Manganese | SchoolMyKids

Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron, and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

How to Locate Manganese on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 25 to find Manganese on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Manganese on periodic table look for cross section of group 7 and period 4 in the modern periodic table.

Table of Contents

Manganese History

The element Manganese was discovered by Torbern Olof Bergman in year 1774 in Sweden . Manganese derived its name corrupted from magnesia negra, see Magnesium

Manganese Presence: Abundance in Nature and Around Us

The table below shows the abundance of Manganese in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.

  Ppb by weight (1ppb =10^-7 %)
Abundance in Universe 8e-06
Abundance in Sun 1e-05
Abundance in Meteorites 0.0027
Abundance in Earth's Crust 0.0011
Abundance in Oceans 2×10-7%
Abundance in Humans 2e-07

Crystal Structure of Manganese

The solid state structure of Manganese is Body Centered Cubic.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)

a b c
891.25 891.25 891.25 pm

and the angles between them Lattice Angles (alpha, beta and gamma).

alpha beta gamma
π/2 π/2 π/2

The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name I_ 43m 25 Mn Manganese - Crystal Structure | SchoolMyKids
Space Group Number 217
Crystal Structure Body Centered Cubic

Manganese Atomic and Orbital Properties

Manganese atoms have 25 electrons and the electronic shell structure is [2, 8, 13, 2] with Atomic Term Symbol (Quantum Numbers) 6S5/2.

Atomic Number 25
Number of Electrons (with no charge) 25
Number of Protons 25
Mass Number 55
Number of Neutrons 30
Shell structure (Electrons per energy level) [2, 8, 13, 2]
Electron Configuration [Ar] 3d5 4s2
Valence Electrons 3d5 4s2
Oxidation State -3;-2;-1
1;2;3;4;5;6;7
Atomic Term Symbol (Quantum Numbers) 6S5/2

Shell Structure of Manganese - Electrons per energy level

25 Mn Manganese - Electron Shell Structure | SchoolMyKids
n s p d f
1 K 2
2 L 2 6
3 M 2 6 5
4 N 2

Ground State Electronic Configuration of Manganese - neutral Manganese atom

The ground state electronic configuration of Neutral Manganese atom is [Ar] 3d5 4s2. The portion of Manganese configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Ar]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 3d5 4s2, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Manganese

Complete ground state electronic configuration for the Manganese atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d5 4s2

Atomic Structure of Manganese

Manganese atomic radius is 161 pm, while it's covalent radius is 139 pm.

Atomic Radius

161 pm (1.61 Å)

Atomic Volume 7.35449116466 cm3
Covalent Radius 139 pm (1.39 Å)
Van der Waals Radius N/A
Neutron Cross Section 13.3 σa/barns

Atomic Spectrum of Manganese

Atomic Spectrum of Manganese | SchoolMyKids

Manganese Chemical Properties: Manganese Ionization Energies and electron affinity

The electron affinity of Manganese is 0 kJ/mol

Valence 4
Electronegativity 1.55
ElectronAffinity 0 kJ/mol

Ionization Energy of Manganese

Refer to table below for Ionization energies of Manganese

Ionization energy number Enthalpy - kJ/mol
1 717.3
2 1509
3 3248
4 4940
5 6990
6 9220
7 1.15×104
8 18770
9 2.14×104
10 23960
11 27590
12 30330
13 33150
14 38880
15 41987
16 109480
17 1.181×105
18 1.271×105
19 1.386×105
20 1.485×105
21 1.586×105

Manganese Physical Properties

Refer to below table for Manganese Physical Properties

Density 7.47 g/cm3
Molar Volume 7.35449116466 cm3

Elastic Properties

Young Modulus 198 GPa
Shear Modulus N/A
Bulk Modulus 120 GPa
Poisson Ratio N/A

Hardness of Manganese - Tests to Measure of Hardness of Element

Mohs Hardness 6 MPa
Vickers Hardness N/A
Brinell Hardness 196 MPa

Manganese Electrical Properties

Manganese is Conductor of electricity. Refer to table below for the Electrical properties of Manganese

Electrical Conductivity 6.2×105 S/m
Resistivity 1.6×10-6 m Ω
Superconducting Point N/A

Manganese Heat and Conduction Properties

Thermal Conductivity 7.8 W/(m K)
Thermal Expansion 0.0000217 K-1

Manganese Magnetic Properties

Magnetic Type Paramagnetic
Curie Point N/A
Mass Magnetic Susceptibility 1.21×10-7
Molar Magnetic Susceptibility 6.6475×10-9
Volume Magnetic Susceptibility 0.00090387

Optical Properties of Manganese

Refractive Index N/A

Acoustic Properties of Manganese

Speed of Sound 5150 m/s

Manganese Thermal Properties - Enthalpies and thermodynamics

Refer to table below for Thermal properties of Manganese

Melting Point 1519 K (1246 °C)
Boiling Point 2334 K (2061 °C)
Critical Temperature N/A
Superconducting Point N/A

Enthalpies of Manganese

Heat of Fusion 13.2 kJ/mol
Heat of Vaporization 220 kJ/mol
Heat of Combustion N/A

Manganese Isotopes - Nuclear Properties of Manganese

Isotopes of rhodium. Naturally occurring Manganese has 1 stable isotope - 55Mn.

Isotope Isotope Mass % Abundance T half Decay Mode
44Mn  
45Mn  
46Mn  
47Mn  
48Mn  
49Mn  
50Mn  
51Mn  
52Mn  
53Mn  
54Mn  
55Mn   100% Stable N/A
56Mn  
57Mn  
58Mn  
59Mn  
60Mn  
61Mn  
62Mn  
63Mn  
64Mn  
65Mn  
66Mn  
67Mn  
68Mn  
69Mn  

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS7439-96-5
RTECS Number N/A
DOT Hazard Class 4.1
DOT Numbers 3089
EU Number N/A
NFPA Fire Rating N/A
NFPA Hazards N/A
NFPA Health Rating N/A
NFPA Reactivity Rating N/A
Autoignition Point N/A
Flashpoint N/A

Database Search

List of unique identifiers to search the element in various chemical registry databases

Database Identifier number
CAS Number - Chemical Abstracts Service (CAS) CAS7439-96-5
CID Number CID23930
Gmelin Number N/A
NSC Number N/A
RTECS Number N/A

List of Elements
1 H - Hydrogen
2 He - Helium
3 Li - Lithium
4 Be - Beryllium
5 B - Boron
6 C - Carbon
7 N - Nitrogen
8 O - Oxygen
9 F - Fluorine
10 Ne - Neon
11 Na - Sodium
12 Mg - Magnesium
13 Al - Aluminium
14 Si - Silicon
15 P - Phosphorus
16 S - Sulfur
17 Cl - Chlorine
18 Ar - Argon
19 K - Potassium
20 Ca - Calcium
21 Sc - Scandium
22 Ti - Titanium
23 V - Vanadium
24 Cr - Chromium
25 Mn - Manganese
26 Fe - Iron
27 Co - Cobalt
28 Ni - Nickel
29 Cu - Copper
30 Zn - Zinc
31 Ga - Gallium
32 Ge - Germanium
33 As - Arsenic
34 Se - Selenium
35 Br - Bromine
36 Kr - Krypton
37 Rb - Rubidium
38 Sr - Strontium
39 Y - Yttrium
40 Zr - Zirconium
41 Nb - Niobium
42 Mo - Molybdenum
43 Tc - Technetium
44 Ru - Ruthenium
45 Rh - Rhodium
46 Pd - Palladium
47 Ag - Silver
48 Cd - Cadmium
49 In - Indium
50 Sn - Tin
51 Sb - Antimony
52 Te - Tellurium
53 I - Iodine
54 Xe - Xenon
55 Cs - Cesium
56 Ba - Barium
57 La - Lanthanum
58 Ce - Cerium
59 Pr - Praseodymium
60 Nd - Neodymium
61 Pm - Promethium
62 Sm - Samarium
63 Eu - Europium
64 Gd - Gadolinium
65 Tb - Terbium
66 Dy - Dysprosium
67 Ho - Holmium
68 Er - Erbium
69 Tm - Thulium
70 Yb - Ytterbium
71 Lu - Lutetium
72 Hf - Hafnium
73 Ta - Tantalum
74 W - Tungsten
75 Re - Rhenium
76 Os - Osmium
77 Ir - Iridium
78 Pt - Platinum
79 Au - Gold
80 Hg - Mercury
81 Tl - Thallium
82 Pb - Lead
83 Bi - Bismuth
84 Po - Polonium
85 At - Astatine
86 Rn - Radon
87 Fr - Francium
88 Ra - Radium
89 Ac - Actinium
90 Th - Thorium
91 Pa - Protactinium
92 U - Uranium
93 Np - Neptunium
94 Pu - Plutonium
95 Am - Americium
96 Cm - Curium
97 Bk - Berkelium
98 Cf - Californium
99 Es - Einsteinium
100 Fm - Fermium
101 Md - Mendelevium
102 No - Nobelium
103 Lr - Lawrencium
104 Rf - Rutherfordium
105 Db - Dubnium
106 Sg - Seaborgium
107 Bh - Bohrium
108 Hs - Hassium
109 Mt - Meitnerium
110 Ds - Darmstadtium
111 Rg - Roentgenium
112 Cn - Copernicium
113 Nh - Nihonium
114 Fl - Flerovium
115 Mc - Moscovium
116 Lv - Livermorium
117 Ts - Tennessine
118 Og - Oganesson
Metalloid
Nonmetals
Other Nonmetals
Halogens Noble Gas
Metals
Alkali Metals Alkaline Earth Metals
Transition Metals Post-Transition Metals
Lanthanide Actinide