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Gold vs Ytterbium

Gold
Ytterbium
Ytterbium vs Gold


Periodic Table
Symbol
Au   
Yb   
Group Number
11   
7
Not Available   
Period Number
6   
6   
Block
d block   
f block   
Element Family
Transition Metal   
Lanthanide   
CAS Number
7440575   
31
7440644   
26
Space Group Name
Fm_ 3m   
Fm_ 3m   
Space Group Number
225.00   
2
225.00   
2
Facts
Interesting Facts
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  
Sources
Earth's crust, Mining, Ores of metals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Unknown   
Jean Charles Galissard de Marignac   
Discovery
Before 6000 BCE   
In 1878   
Abundance
  
  
Abundance In Universe
6 * 10-8 %   
26
2 * 10-7 %   
22
Abundance In Sun
~0.0000001 %   
26
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
99+
0.00 %   
36
Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
33
Abundance In Oceans
0.00 %   
21
0.00 %   
37
Abundance In Humans
0.00 %   
18
Not Available   
Uses
Uses & Benefits
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
  • 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
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry   
Automobile Industry, Chemical Industry   
Medical Uses
Dentistry, Pharmaceutical Industry   
NA   
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Alloys   
Biological Properties
  
  
Toxicity
Non Toxic   
Highly Toxic   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
35
Not Available   
In Bone
0.02 p.p.m.   
30
Not Available   
Physical Properties
Melting Point
1,064.43 °C   
99+
824.00 °C   
99+
Boiling Point
2,807.00 °C   
36
1,196.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gold   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
2.50   
14
Not Available   
Brinell Hardness
194.00 MPa   
99+
343.00 MPa   
31
Vickers Hardness
216.00 MPa   
31
206.00 MPa   
33
Speed of Sound
2,030.00 m/s   
99+
1,590.00 m/s   
99+
Optical Properties
  
  
Reflectivity
95.00 %   
2
Not Available   
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
Au   
Yb   
Isotopes
  
  
Known Isotopes
36   
3
30   
9
Electronegativity
  
  
Pauling Electronegativity
2.54   
1
Not Available   
Allred Rochow Electronegativity
1.42   
18
1.06   
33
Mulliken-Jaffe Electronegativity
1.87   
7
Not Available   
Allen Electronegativity
1.92   
5
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.46   
99+
Not Available   
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol   
8
603.40 kJ/mol   
99+
2nd Energy Level
1,980.00 kJ/mol   
12
1,174.80 kJ/mol   
99+
3rd Energy Level
Not Available   
2,417.00 kJ/mol   
99+
4th Energy Level
Not Available   
4,203.00 kJ/mol   
31
Electrochemical Equivalent
2.45 g/amp-hr   
21
2.15 g/amp-hr   
25
Electron Work Function
5.10 eV   
4
Not Available   
Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
79   
37
70   
99+
Electron Configuration
[Xe] 4f14 5d10 6s1   
[Xe] 4f14 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100   
FCC-Crystal-Structure-of-Ytterbium.jpg#100   
Atom
  
  
Number of Protons
79   
37
70   
99+
Number of Neutrons
118   
23
103   
31
Number of Electrons
79   
37
70   
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm   
32
176.00 pm   
18
Covalent Radius
144.00 pm   
40
187.00 pm   
20
Van der Waals Radius
166.00 pm   
39
242.00 pm   
12
Atomic Weight
196.97 amu   
33
173.05 amu   
99+
Atomic Volume
10.20 cm3/mol   
99+
24.79 cm3/mol   
9
Adjacent Atomic Numbers
  
  
Previous Element
Platinum
  
Thulium
  
Next Element
Mercury
  
Lutetium
  
Valence Electron Potential
43.40 (-eV)   
99+
50.30 (-eV)   
27
Lattice Constant
407.82 pm   
21
548.47 pm   
11
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
1.61   
4
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
19.30 g/cm3   
15
6.90 g/cm3   
99+
Density When Liquid (at m.p.)
17.31 g/cm3   
6
6.21 g/cm3   
99+
Tensile Strength
120.00 MPa   
15
58.00 MPa   
18
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
23
Not Available   
Vapor Pressure at 2000 K
67.00 (Pa)   
4
Not Available   
Elasticity properties
  
  
Shear Modulus
27.00 GPa   
27
9.90 GPa   
99+
Bulk Modulus
180.00 GPa   
9
30.50 GPa   
39
Young's Modulus
79.00 GPa   
24
23.90 GPa   
99+
Poisson Ratio
0.40   
4
0.21   
33
Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
19.32   
8
6.97   
99+
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
2.20 nΩ·m   
99+
0.25 nΩ·m   
99+
Electrical Conductivity
0.45 106/cm Ω   
3
0.04 106/cm Ω   
38
Electron Affinity
222.80 kJ/mol   
1
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.15 J/(kg K)   
36
Molar Heat Capacity
25.42 J/mol·K   
40
26.74 J/mol·K   
25
Thermal Conductivity
318.00 W/m·K   
3
38.50 W/m·K   
35
Critical Temperature
Not Available   
26.30 K   
7
Thermal Expansion
14.20 µm/(m·K)   
26
26.30 µm/(m·K)   
14
Enthalpy
  
  
Enthalpy of Vaporization
324.40 kJ/mol   
27
128.90 kJ/mol   
99+
Enthalpy of Fusion
12.55 kJ/mol   
27
7.66 kJ/mol   
99+
Enthalpy of Atomization
364.00 kJ/mol   
25
180.00 kJ/mol   
99+
Standard Molar Entropy
47.40 J/mol.K   
32
59.90 J/mol.K   
21
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