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Beryllium vs Manganese


Manganese vs Beryllium


Periodic Table

Symbol
Be   
Mn   

Group Number
2   
16
7   
11

Period Number
2   
4   

Block
s block   
d block   

Element Family
Alkaline Earth   
Transition Metal   

CAS Number
7440417   
99+
7439965   
99+

Space Group Name
P63/mmc   
I_ 43m   

Space Group Number
194.00   
5
217.00   
4

Facts

Interesting Facts
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
  
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  

Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Louis Nicolas Vauquelin   
Johann Gottlieb Gahn   

Discovery
In 1797   
In 1774   

Abundance
  
  

Abundance In Universe
1 * 10-7 %   
23
8 * 10-4 %   
8

Abundance In Sun
~0.00000001 %   
29
~0.001 %   
8

Abundance In Meteorites
0.00 %   
99+
0.27 %   
8

Abundance In Earth's Crust
0.00 %   
35
0.11 %   
8

Abundance In Oceans
0.00 %   
39
0.00 %   
13

Abundance In Humans
0.00 %   
19
0.00 %   
13

Uses

Uses & Benefits
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  
  • 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.
  

Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Automobile Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.00 Blood/mg dm-3   
32
0.08 Blood/mg dm-3   
14

In Bone
0.00 p.p.m.   
32
100.00 p.p.m.   
8

Physical Properties

Melting Point
1,278.00 °C   
36
1,245.00 °C   
37

Boiling Point
2,970.00 °C   
32
1,962.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
White Gray   
Silver   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
5.50   
7
6.00   
6

Brinell Hardness
590.00 MPa   
21
196.00 MPa   
99+

Vickers Hardness
1,670.00 MPa   
4
Not Available   

Speed of Sound
12,890.00 m/s   
2
5,150.00 m/s   
7

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Be   
Mn   

Isotopes
  
  

Known Isotopes
9   
29
21   
18

Electronegativity
  
  

Pauling Electronegativity
1.57   
24
1.55   
25

Sanderson Electronegativity
1.81   
12
2.20   
7

Allred Rochow Electronegativity
1.47   
14
1.60   
9

Mulliken-Jaffe Electronegativity
1.54   
12
Not Available   

Allen Electronegativity
1.58   
23
1.75   
15

Electropositivity
  
  

Pauling Electropositivity
2.43   
30
2.45   
29

Ionization Energies
  
  

1st Energy Level
899.50 kJ/mol   
7
717.30 kJ/mol   
30

2nd Energy Level
1,757.10 kJ/mol   
23
1,509.00 kJ/mol   
39

3rd Energy Level
14,848.70 kJ/mol   
2
3,248.00 kJ/mol   
21

4th Energy Level
21,006.60 kJ/mol   
2
4,940.00 kJ/mol   
20

5th Energy Level
Not Available   
6,990.00 kJ/mol   
17

6th Energy Level
Not Available   
9,220.00 kJ/mol   
16

7th Energy level
Not Available   
11,500.00 kJ/mol   
16

8th Energy Level
Not Available   
18,770.00 kJ/mol   
5

9th Energy Level
Not Available   
21,400.00 kJ/mol   
6

10th Energy Level
Not Available   
23,960.00 kJ/mol   
9

11th Energy Level
Not Available   
27,590.00 kJ/mol   
10

12th Energy Level
Not Available   
30,330.00 kJ/mol   
10

13th Energy Level
Not Available   
33,150.00 kJ/mol   
11

14th Energy Level
Not Available   
38,880.00 kJ/mol   
10

15th Energy Level
Not Available   
41,987.00 kJ/mol   
13

16th Energy Level
Not Available   
109,480.00 kJ/mol   
1

17th Energy Level
Not Available   
118,100.00 kJ/mol   
2

18th Energy Level
Not Available   
127,100.00 kJ/mol   
3

19th Energy Level
Not Available   
138,600.00 kJ/mol   
4

20th Energy Level
Not Available   
148,500.00 kJ/mol   
6

21st Energy Level
Not Available   
158,600.00 kJ/mol   
6

22nd Energy Level
Not Available   
172,500.00 kJ/mol   
5

23rd Energy Level
Not Available   
181,380.00 kJ/mol   
5

Electrochemical Equivalent
0.17 g/amp-hr   
99+
0.29 g/amp-hr   
99+

Electron Work Function
4.98 eV   
6
4.10 eV   
25

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
4   
99+
25   
99+

Electron Configuration
[He] 2s2   
[Ar] 3d5 4s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
4   
99+
25   
99+

Number of Neutrons
5   
99+
30   
99+

Number of Electrons
4   
99+
25   
99+

Radius of an Atom
  
  

Atomic Radius
112.00 pm   
99+
127.00 pm   
99+

Covalent Radius
96.00 pm   
99+
139.00 pm   
99+

Van der Waals Radius
153.00 pm   
99+
200.00 pm   
28

Atomic Weight
9.01 amu   
99+
54.94 amu   
99+

Atomic Volume
5.00 cm3/mol   
99+
1.39 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Lithium
  
Chromium
  

Next Element
Sodium
  
Iron
  

Valence Electron Potential
82.00 (-eV)   
15
220.00 (-eV)   
2

Lattice Constant
228.58 pm   
99+
891.25 pm   
1

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
1.57   
18
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
1.85 g/cm3   
99+
7.21 g/cm3   
99+

Density When Liquid (at m.p.)
1.69 g/cm3   
99+
5.95 g/cm3   
99+

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
19
0.00 (Pa)   
12

Elasticity properties
  
  

Shear Modulus
132.00 GPa   
7
Not Available   

Bulk Modulus
130.00 GPa   
13
120.00 GPa   
14

Young's Modulus
287.00 GPa   
7
198.00 GPa   
12

Poisson Ratio
0.03   
35
Not Available   

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
1.85   
99+
7.21   
99+

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

Resistivity
36.00 nΩ·m   
99+
1.44 nΩ·m   
99+

Electrical Conductivity
0.31 106/cm Ω   
5
0.01 106/cm Ω   
99+

Electron Affinity
0.00 kJ/mol   
40
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
1.82 J/(kg K)   
2
0.48 J/(kg K)   
11

Molar Heat Capacity
16.44 J/mol·K   
99+
26.32 J/mol·K   
29

Thermal Conductivity
200.00 W/m·K   
6
7.81 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
11.30 µm/(m·K)   
34
21.70 µm/(m·K)   
21

Enthalpy
  
  

Enthalpy of Vaporization
294.70 kJ/mol   
30
219.70 kJ/mol   
99+

Enthalpy of Fusion
11.72 kJ/mol   
30
14.64 kJ/mol   
23

Enthalpy of Atomization
326.40 kJ/mol   
30
280.30 kJ/mol   
38

Standard Molar Entropy
9.50 J/mol.K   
99+
32.00 J/mol.K   
99+

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