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Manganese
Manganese

Radium
Radium



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1 Periodic Table
1.1 Symbol
Mn
Ra
1.2 Group Number
72
Gadolinium
0 17
1.3 Period Number
47
Lithium
2 7
1.4 Block
d block
s block
1.5 Element Family
Transition Metal
Alkaline Earth
1.6 CAS Number
74399657440144
Aluminium
7429905 54386242
1.7 Space Group Name
I_ 43m
Im_ 3m
1.8 Space Group Number
217.00229.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  • Radium metal is the heaviest metal of Alkaline earth metals column.
  • Radium metal is highly radioactive and does not have any stable isotopes.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals
2.3 History
2.3.1 Who Discovered
Johann Gottlieb Gahn
Not Available
2.3.2 Discovery
In 1774
In 1898
2.4 Abundance
2.4.1 Abundance In Universe
8 * 10-4 %NA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.001 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.27 %NA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.11 %0.00 %
Palladium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
0.00 %0.00 %
Tin
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
  • Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
  • It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
  • It is used in luminous paints.
3.1.1 Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
NA
Pharmaceutical Industry
3.1.3 Other Uses
Alloys
NA
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.08 Blood/mg dm-3NA
Plutonium
0 1970
3.2.4 In Bone
100.00 p.p.m.NA
Plutonium
0 170000
4 Physical
4.1 Melting Point
1,245.00 °C700.00 °C
Francium
27 3410
4.2 Boiling Point
1,962.00 °C1,737.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silver
Silvery White
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
6.00NA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
196.00 MPaNA
Cesium
0.14 3490
4.4.3 Vickers Hardness
NANA
Palladium
121 3430
4.5 Speed of Sound
5,150.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Mn
Ra
5.2 Isotopes
5.2.1 Known Isotopes
2133
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.550.90
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
2.20NA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.600.97
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NA0.92
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
1.750.89
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.453.10
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
717.30 kJ/mol509.30 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,509.00 kJ/mol979.00 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
3,248.00 kJ/molNA
Osmium
1600 34230
5.5.4 4th Energy Level
4,940.00 kJ/molNA
Thorium
2780 37066
5.5.5 5th Energy Level
6,990.00 kJ/molNA
Dubnium
4305.2 97510
5.5.6 6th Energy Level
9,220.00 kJ/molNA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
11,500.00 kJ/molNA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
18,770.00 kJ/molNA
Hassium
8857.4 125300
5.5.9 9th Energy Level
21,400.00 kJ/molNA
Yttrium
14110 134700
5.5.10 10th Energy Level
23,960.00 kJ/molNA
Strontium
17100 144300
5.5.11 11th Energy Level
27,590.00 kJ/molNA
Yttrium
19900 169988
5.5.12 12th Energy Level
30,330.00 kJ/molNA
Molybdenum
22219 189368
5.5.13 13th Energy Level
33,150.00 kJ/molNA
Molybdenum
26930 76015
5.5.14 14th Energy Level
38,880.00 kJ/molNA
Molybdenum
29196 86450
5.5.15 15th Energy Level
41,987.00 kJ/molNA
Copper
41987 97510
5.5.16 16th Energy Level
109,480.00 kJ/molNA
Iron
47206 109480
5.5.17 17th Energy Level
118,100.00 kJ/molNA
Cobalt
52737 122200
5.5.18 18th Energy Level
127,100.00 kJ/molNA
Nickel
58570 134810
5.5.19 19th Energy Level
138,600.00 kJ/molNA
Copper
64702 148700
5.5.20 20th Energy Level
148,500.00 kJ/molNA
Molybdenum
80400 171200
5.5.21 21st Energy Level
158,600.00 kJ/molNA
Molybdenum
87000 179100
5.5.22 22nd Energy Level
172,500.00 kJ/molNA
Molybdenum
93400 184900
5.5.23 23rd Energy Level
181,380.00 kJ/molNA
Molybdenum
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum
154500 154500
5.6 Electrochemical Equivalent
0.29 g/amp-hr4.22 g/amp-hr
Beryllium
0.16812 8.3209
5.7 Electron Work Function
4.10 eVNA
Cesium
2.14 5.65
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
2588
Lithium
3 117
6.2 Electron Configuration
[Ar] 3d5 4s2
[Rn] 7s2
6.3 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
2588
Lithium
3 117
6.4.2 Number of Neutrons
30138
Lithium
4 184
6.4.3 Number of Electrons
2588
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
127.00 pmNA
Beryllium
112 265
6.5.2 Covalent Radius
139.00 pm221.00 pm
Beryllium
96 260
6.5.3 Van der Waals Radius
200.00 pm283.00 pm
Zinc
139 348
6.6 Atomic Weight
54.94 amu226.00 amu
Lithium
6.94 294
6.7 Atomic Volume
1.39 cm3/mol45.20 cm3/mol
Palladium
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
220.00 (-eV)20.10 (-eV)
Francium
8 392.42
6.10 Lattice Constant
891.25 pm514.80 pm
Beryllium
228.58 891.25
6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
7.21 g/cm35.50 g/cm3
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
5.95 g/cm3NA
Lithium
0.512 20
7.2 Tensile Strength
NANA
Indium
2.5 11000
7.3 Viscosity
NANA
Mercury
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
NANA
Potassium
1.3 222
7.5.2 Bulk Modulus
120.00 GPaNA
Cesium
1.6 462
7.5.3 Young's Modulus
198.00 GPaNA
Cesium
1.7 528
7.6 Poisson Ratio
NANA
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
NA
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
7.215.00
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Nonmagnetic
8.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
NA
8.2.2 Resistivity
1.44 nΩ·m100.00 nΩ·m
Thallium
0.18 961
8.2.3 Electrical Conductivity
0.01 106/cm ΩNA
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
0.00 kJ/molNA
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
0.48 J/(kg K)0.12 J/(kg K)
Americium
0.11 3.6
9.2 Molar Heat Capacity
26.32 J/mol·KNA
Beryllium
16.443 62.7
9.3 Thermal Conductivity
7.81 W/m·K18.60 W/m·K
Neptunium
6.3 429
9.4 Critical Temperature
NANA
Ytterbium
26.3 3223
9.5 Thermal Expansion
21.70 µm/(m·K)NA
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
219.70 kJ/molNA
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
14.64 kJ/molNA
Cesium
2.1 35.23
9.6.3 Enthalpy of Atomization
280.30 kJ/mol163.00 kJ/mol
Mercury
61.5 837
9.7 Standard Molar Entropy
32.00 J/mol.K71.00 J/mol.K
Beryllium
9.5 198.1