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Manganese vs Yttrium


Yttrium vs Manganese


Periodic Table

Symbol
Mn   
Y   

Group Number
7   
11
3   
15

Period Number
4   
5   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7439965   
99+
7440655   
25

Space Group Name
I_ 43m   
P63/mmc   

Space Group Number
217.00   
4
194.00   
5

Facts

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.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Johann Gottlieb Gahn   
Johan Gadolin   

Discovery
In 1774   
In 1794   

Abundance
  
  

Abundance In Universe
8 * 10-4 %   
8
7 * 10-7 %   
17

Abundance In Sun
~0.001 %   
8
~0.0000001 %   
26

Abundance In Meteorites
0.27 %   
8
0.00 %   
21

Abundance In Earth's Crust
0.11 %   
8
0.00 %   
22

Abundance In Oceans
0.00 %   
13
0.00 %   
25

Abundance In Humans
0.00 %   
13
Not Available   

Uses

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.
  
  • Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
  • It is also used as a catalyst in ethene polymerisation.
  

Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry   
Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Highly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.08 Blood/mg dm-3   
14
0.00 Blood/mg dm-3   
26

In Bone
100.00 p.p.m.   
8
0.07 p.p.m.   
25

Physical Properties

Melting Point
1,245.00 °C   
37
1,523.00 °C   
27

Boiling Point
1,962.00 °C   
99+
3,337.00 °C   
21

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
6.00   
6
Not Available   

Brinell Hardness
196.00 MPa   
99+
589.00 MPa   
22

Speed of Sound
5,150.00 m/s   
7
3,300.00 m/s   
23

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
Mn   
Y   

Isotopes
  
  

Known Isotopes
21   
18
19   
20

Electronegativity
  
  

Pauling Electronegativity
1.55   
25
1.22   
38

Sanderson Electronegativity
2.20   
7
0.65   
29

Allred Rochow Electronegativity
1.60   
9
1.11   
29

Allen Electronegativity
1.75   
15
1.12   
38

Electropositivity
  
  

Pauling Electropositivity
2.45   
29
2.78   
16

Ionization Energies
  
  

1st Energy Level
717.30 kJ/mol   
30
600.00 kJ/mol   
99+

2nd Energy Level
1,509.00 kJ/mol   
39
1,180.00 kJ/mol   
99+

3rd Energy Level
3,248.00 kJ/mol   
21
1,980.00 kJ/mol   
99+

4th Energy Level
4,940.00 kJ/mol   
20
5,847.00 kJ/mol   
10

5th Energy Level
6,990.00 kJ/mol   
17
7,430.00 kJ/mol   
14

6th Energy Level
9,220.00 kJ/mol   
16
8,970.00 kJ/mol   
17

7th Energy level
11,500.00 kJ/mol   
16
11,190.00 kJ/mol   
18

8th Energy Level
18,770.00 kJ/mol   
5
12,450.00 kJ/mol   
18

9th Energy Level
21,400.00 kJ/mol   
6
14,110.00 kJ/mol   
19

10th Energy Level
23,960.00 kJ/mol   
9
18,400.00 kJ/mol   
17

11th Energy Level
27,590.00 kJ/mol   
10
19,900.00 kJ/mol   
18

12th Energy Level
30,330.00 kJ/mol   
10
36,090.00 kJ/mol   
5

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

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

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

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

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

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

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

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

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

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

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

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

Electron Work Function
4.10 eV   
25
3.10 eV   
35

Other Chemical Properties
Ionization, Radioactive Isotopes   
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
25   
99+
39   
99+

Electron Configuration
[Ar] 3d5 4s2   
[Kr] 4d1 5s2   

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

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

Atom
  
  

Number of Protons
25   
99+
39   
99+

Number of Neutrons
30   
99+
50   
99+

Number of Electrons
25   
99+
39   
99+

Radius of an Atom
  
  

Atomic Radius
127.00 pm   
99+
180.00 pm   
14

Covalent Radius
139.00 pm   
99+
190.00 pm   
18

Van der Waals Radius
200.00 pm   
28
200.00 pm   
28

Atomic Weight
54.94 amu   
99+
88.91 amu   
99+

Atomic Volume
1.39 cm3/mol   
99+
19.80 cm3/mol   
21

Adjacent Atomic Numbers
  
  

Previous Element
Chromium
  
Strontium
  

Next Element
Iron
  
Zirconium
  

Valence Electron Potential
220.00 (-eV)   
2
48.00 (-eV)   
30

Lattice Constant
891.25 pm   
1
364.74 pm   
31

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.57   
16

Mechanical Properties

Density
  
  

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

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

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
12
0.00 (Pa)   
32

Vapor Pressure at 2000 K
Not Available   
4.27 (Pa)   
10

Elasticity properties
  
  

Shear Modulus
Not Available   
25.60 GPa   
30

Bulk Modulus
120.00 GPa   
14
41.20 GPa   
30

Young's Modulus
198.00 GPa   
12
63.50 GPa   
32

Poisson Ratio
Not Available   
0.24   
26

Other Mechanical Properties
NA   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.21   
99+
4.47   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
1.44 nΩ·m   
99+
596.00 nΩ·m   
8

Electrical Conductivity
0.01 106/cm Ω   
99+
0.02 106/cm Ω   
99+

Electron Affinity
0.00 kJ/mol   
40
29.60 kJ/mol   
30

Thermal Properties

Specific Heat
0.48 J/(kg K)   
11
0.30 J/(kg K)   
18

Molar Heat Capacity
26.32 J/mol·K   
29
26.53 J/mol·K   
27

Thermal Conductivity
7.81 W/m·K   
99+
17.20 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
21.70 µm/(m·K)   
21
10.60 µm/(m·K)   
37

Enthalpy
  
  

Enthalpy of Vaporization
219.70 kJ/mol   
99+
393.00 kJ/mol   
18

Enthalpy of Fusion
14.64 kJ/mol   
23
17.15 kJ/mol   
16

Enthalpy of Atomization
280.30 kJ/mol   
38
418.00 kJ/mol   
18

Standard Molar Entropy
32.00 J/mol.K   
99+
44.40 J/mol.K   
33

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