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Yttrium vs Ytterbium


Ytterbium vs Yttrium


Periodic Table

Symbol
Y  
Yb  

Group Number
3  
15
3  
15

Period Number
5  
6  

Block
d block  
f block  

Element Family
Transition Metal  
Lanthanide  

CAS Number
7440655  
25
7440644  
26

Space Group Name
P63/mmc  
Fm_ 3m  

Space Group Number
194.00  
7
225.00  
3

Facts

Interesting Facts
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  

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

History
  
  

Who Discovered
Johan Gadolin  
Jean Charles Galissard de Marignac  

Discovery
In 1794  
In 1878  

Abundance
  
  

Abundance In Universe
0.00 %  
18
0.00 %  
23

Abundance In Sun
0.00 %  
26
0.00 %  
26

Abundance In Meteorites
0.00 %  
21
0.00 %  
36

Abundance In Earth's Crust
0.00 %  
22
0.00 %  
33

Abundance In Oceans
0.00 %  
25
0.00 %  
37

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • 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.
  
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
  

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

Medical Uses
-  
-  

Other Uses
Alloys  
Alloys  

Biological Properties
  
  

Toxicity
Highly Toxic  
Highly Toxic  

Present in Human Body
Yes  
No  

In Blood
0.00 Blood/mg dm-3  
26
0.00 Blood/mg dm-3  
40

In Bone
0.07 p.p.m.  
30
2.10 p.p.m.  
15

Physical

Melting Point
1,523.00 °C  
27
824.00 °C  
99+

Boiling Point
3,337.00 °C  
22
1,196.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery White  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
4.00  
11
1.00  
22

Brinell Hardness
589.00 MPa  
26
343.00 MPa  
37

Vickers Hardness
590.00 MPa  
29
206.00 MPa  
99+

Speed of Sound
3,300.00 m/s  
34
1,590.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.90  
18
1.60  
33

Reflectivity
83.00 %  
6
30.00 %  
35

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Y  
Yb  

Isotopes
  
  

Known Isotopes
19  
20
30  
9

Electronegativity
  
  

Pauling Electronegativity
1.22  
39
1.10  
99+

Sanderson Electronegativity
0.65  
99+
1.10  
38

Allred Rochow Electronegativity
1.11  
30
1.06  
34

Mulliken-Jaffe Electronegativity
1.22  
38
1.10  
99+

Allen Electronegativity
1.12  
99+
1.10  
99+

Electropositivity
  
  

Pauling Electropositivity
2.78  
16
2.20  
39

Ionization Energies
  
  

1st Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

2nd Energy Level
1,180.00 kJ/mol  
99+
1,174.80 kJ/mol  
99+

3rd Energy Level
1,980.00 kJ/mol  
99+
2,417.00 kJ/mol  
99+

4th Energy Level
5,847.00 kJ/mol  
19
4,203.00 kJ/mol  
99+

5th Energy Level
7,430.00 kJ/mol  
22
6,150.00 kJ/mol  
99+

6th Energy Level
8,970.00 kJ/mol  
23
6,030.00 kJ/mol  
99+

7th Energy level
11,190.00 kJ/mol  
18
6,150.00 kJ/mol  
99+

8th Energy Level
12,450.00 kJ/mol  
18
6,034.00 kJ/mol  
99+

9th Energy Level
14,110.00 kJ/mol  
19
6,150.00 kJ/mol  
99+

10th Energy Level
18,400.00 kJ/mol  
17
6,150.00 kJ/mol  
99+

11th Energy Level
19,900.00 kJ/mol  
18
6,150.00 kJ/mol  
99+

12th Energy Level
36,090.00 kJ/mol  
25
6,030.00 kJ/mol  
99+

13th Energy Level
6,000.00 kJ/mol  
99+
6,030.00 kJ/mol  
99+

14th Energy Level
6,000.00 kJ/mol  
33
6,030.00 kJ/mol  
31

15th Energy Level
60,000.00 kJ/mol  
99+
60,300.00 kJ/mol  
99+

16th Energy Level
60,000.00 kJ/mol  
34
60,300.00 kJ/mol  
32

17th Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

18th Energy Level
6,000.00 kJ/mol  
99+
6,110.00 kJ/mol  
99+

19th Energy Level
600.00 kJ/mol  
99+
603.00 kJ/mol  
99+

20th Energy Level
600.00 kJ/mol  
99+
615.00 kJ/mol  
99+

21st Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

22nd Energy Level
600.00 kJ/mol  
99+
603.00 kJ/mol  
99+

23rd Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

24th Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

25th Energy Level
600.00 kJ/mol  
99+
603.40 kJ/mol  
99+

26th Energy Level
604.50 kJ/mol  
99+
603.40 kJ/mol  
99+

27th Energy Level
604.50 kJ/mol  
99+
603.40 kJ/mol  
99+

28th Energy Level
604.50 kJ/mol  
99+
603.40 kJ/mol  
99+

29th Energy Level
604.50 kJ/mol  
99+
603.40 kJ/mol  
99+

30th Energy Level
604.50 kJ/mol  
99+
603.40 kJ/mol  
99+

Electrochemical Equivalent
1.11 g/amp-hr  
99+
2.15 g/amp-hr  
29

Electron Work Function
3.10 eV  
99+
3.20 eV  
99+

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

Atomic

Atomic Number
39  
99+
70  
99+

Electron Configuration
[Kr] 4d1 5s2  
[Xe] 4f14 6s2  

Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  

Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100  
FCC-Crystal-Structure-of-Ytterbium.jpg#100  

Atom
  
  

Number of Protons
39  
99+
70  
99+

Number of Neutrons
50  
99+
103  
32

Number of Electrons
39  
99+
70  
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm  
16
176.00 pm  
20

Covalent Radius
190.00 pm  
18
187.00 pm  
20

Van der Waals Radius
200.00 pm  
35
242.00 pm  
16

Atomic Weight
88.91 amu  
99+
173.05 amu  
99+

Atomic Volume
19.80 cm3/mol  
33
24.79 cm3/mol  
13

Adjacent Atomic Numbers
  
  

Previous Element
Strontium
  
Thulium
  

Next Element
Zirconium
  
Lutetium
  

Valence Electron Potential
48.00 (-eV)  
31
50.30 (-eV)  
28

Lattice Constant
364.74 pm  
34
548.47 pm  
12

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

Lattice C/A Ratio
1.57  
39
1.61  
20

Mechanical

Density
  
  

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

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

Tensile Strength
160.00 MPa  
22
58.00 MPa  
36

Viscosity
0.00  
18
0.00  
20

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
34
0.00 (Pa)  
37

Vapor Pressure at 2000 K
4.27 (Pa)  
10
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
25.60 GPa  
37
9.90 GPa  
99+

Bulk Modulus
41.20 GPa  
35
30.50 GPa  
99+

Young's Modulus
63.50 GPa  
34
23.90 GPa  
99+

Poisson Ratio
0.24  
26
0.21  
34

Other Mechanical Properties
Ductile  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
4.47  
99+
6.97  
99+

Magnetic Ordering
Paramagnetic  
Paramagnetic  

Permeability
0.00 H/m  
18
0.00 H/m  
13

Susceptibility
0.00  
24
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

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

Electrical Conductivity
0.02 106/cm Ω  
99+
0.04 106/cm Ω  
99+

Electron Affinity
29.60 kJ/mol  
36
50.00 kJ/mol  
26

Thermal

Specific Heat
0.30 J/(kg K)  
18
0.15 J/(kg K)  
37

Molar Heat Capacity
26.53 J/mol·K  
35
26.74 J/mol·K  
32

Thermal Conductivity
17.20 W/m·K  
99+
38.50 W/m·K  
35

Critical Temperature
1,799.00 K  
31
26.30 K  
99+

Thermal Expansion
10.60 µm/(m·K)  
99+
26.30 µm/(m·K)  
14

Enthalpy
  
  

Enthalpy of Vaporization
393.00 kJ/mol  
25
128.90 kJ/mol  
99+

Enthalpy of Fusion
17.15 kJ/mol  
16
7.66 kJ/mol  
99+

Enthalpy of Atomization
418.00 kJ/mol  
23
180.00 kJ/mol  
99+

Standard Molar Entropy
44.40 J/mol.K  
99+
59.90 J/mol.K  
26

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