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Cadmium vs Yttrium

Cadmium
Yttrium
Yttrium vs Cadmium


Periodic Table
Symbol
Cd  
Y  
Group Number
12  
6
3  
15
Period Number
5  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440439  
99+
7440655  
25
Space Group Name
P63/mmc  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • Naturally occurring minor elements include Cadmium.
  • Cadmium is released into atmosphere to control volcanic eruption and forest fires.
  • It is used for electroplating of Steel for corrosion resistance.
  • It can absorb neutrons and used in nuclear reactor to control atomic fission.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Found As a By-product, Found in Minerals, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Karl Samuel Leberecht Hermann and Friedrich Stromeyer  
Johan Gadolin  
Discovery
In 1817  
In 1794  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
18
Abundance In Sun
0.00 %  
21
0.00 %  
26
Abundance In Meteorites
0.00 %  
31
0.00 %  
21
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
22
Abundance In Oceans
0.00 %  
28
0.00 %  
25
Abundance In Humans
0.00 %  
12
0.00 %  
24
Uses
Uses & Benefits
  • It has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
  • Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
  
  • 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
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Highly Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.01 Blood/mg dm-3  
24
0.00 Blood/mg dm-3  
26
In Bone
1.80 p.p.m.  
16
0.07 p.p.m.  
30
Physical
Melting Point
320.90 °C  
99+
1,523.00 °C  
27
Boiling Point
765.00 °C  
99+
3,337.00 °C  
22
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Bluish-Gray  
Silvery White  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
2.00  
17
4.00  
11
Brinell Hardness
203.00 MPa  
99+
589.00 MPa  
26
Vickers Hardness
90.00 MPa  
99+
590.00 MPa  
29
Speed of Sound
2,310.00 m/s  
99+
3,300.00 m/s  
34
Optical Properties
  
  
Refractive Index
1.71  
26
1.90  
18
Reflectivity
67.00 %  
16
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Cd  
Y  
Isotopes
  
  
Known Isotopes
34  
5
19  
20
Electronegativity
  
  
Pauling Electronegativity
1.69  
18
1.22  
39
Sanderson Electronegativity
1.98  
11
0.65  
99+
Allred Rochow Electronegativity
1.46  
16
1.11  
30
Mulliken-Jaffe Electronegativity
1.53  
25
1.22  
38
Allen Electronegativity
1.52  
30
1.12  
99+
Electropositivity
  
  
Pauling Electropositivity
2.31  
37
2.78  
16
Ionization Energies
  
  
1st Energy Level
867.80 kJ/mol  
11
600.00 kJ/mol  
99+
2nd Energy Level
1,631.40 kJ/mol  
33
1,180.00 kJ/mol  
99+
3rd Energy Level
3,616.00 kJ/mol  
13
1,980.00 kJ/mol  
99+
4th Energy Level
867.80 kJ/mol  
99+
5,847.00 kJ/mol  
19
5th Energy Level
4,040.00 kJ/mol  
99+
7,430.00 kJ/mol  
22
6th Energy Level
8,640.00 kJ/mol  
28
8,970.00 kJ/mol  
23
7th Energy level
8,640.00 kJ/mol  
24
11,190.00 kJ/mol  
18
8th Energy Level
8,640.00 kJ/mol  
24
12,450.00 kJ/mol  
18
9th Energy Level
8,670.00 kJ/mol  
22
14,110.00 kJ/mol  
19
10th Energy Level
8,650.00 kJ/mol  
25
18,400.00 kJ/mol  
17
11th Energy Level
8,670.00 kJ/mol  
22
19,900.00 kJ/mol  
18
12th Energy Level
86,400.00 kJ/mol  
3
36,090.00 kJ/mol  
25
13th Energy Level
8,640.00 kJ/mol  
17
6,000.00 kJ/mol  
99+
14th Energy Level
8,650.00 kJ/mol  
15
6,000.00 kJ/mol  
33
15th Energy Level
86,400.00 kJ/mol  
10
60,000.00 kJ/mol  
99+
16th Energy Level
86,400.00 kJ/mol  
10
60,000.00 kJ/mol  
34
17th Energy Level
864.90 kJ/mol  
28
600.00 kJ/mol  
99+
18th Energy Level
8,670.00 kJ/mol  
17
6,000.00 kJ/mol  
99+
19th Energy Level
867.80 kJ/mol  
26
600.00 kJ/mol  
99+
20th Energy Level
865.00 kJ/mol  
16
600.00 kJ/mol  
99+
21st Energy Level
8,670.00 kJ/mol  
10
600.00 kJ/mol  
99+
22nd Energy Level
864.00 kJ/mol  
14
600.00 kJ/mol  
99+
23rd Energy Level
864.90 kJ/mol  
40
600.00 kJ/mol  
99+
24th Energy Level
864.90 kJ/mol  
10
600.00 kJ/mol  
99+
25th Energy Level
864.00 kJ/mol  
8
600.00 kJ/mol  
99+
26th Energy Level
864.90 kJ/mol  
8
604.50 kJ/mol  
99+
27th Energy Level
864.90 kJ/mol  
8
604.50 kJ/mol  
99+
28th Energy Level
864.90 kJ/mol  
11
604.50 kJ/mol  
99+
29th Energy Level
864.90 kJ/mol  
12
604.50 kJ/mol  
99+
30th Energy Level
864.00 kJ/mol  
8
604.50 kJ/mol  
99+
Electrochemical Equivalent
2.10 g/amp-hr  
31
1.11 g/amp-hr  
99+
Electron Work Function
4.22 eV  
29
3.10 eV  
99+
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
48  
99+
39  
99+
Electron Configuration
[Kr] 4d10 5s2  
[Kr] 4d1 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Cadmium.jpg#100  
HCP-Crystal-Structure-of-Yttrium.jpg#100  
Atom
  
  
Number of Protons
48  
99+
39  
99+
Number of Neutrons
64  
99+
50  
99+
Number of Electrons
48  
99+
39  
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
34
180.00 pm  
16
Covalent Radius
144.00 pm  
99+
190.00 pm  
18
Van der Waals Radius
158.00 pm  
99+
200.00 pm  
35
Atomic Weight
112.41 amu  
99+
88.91 amu  
99+
Atomic Volume
13.10 cm3/mol  
99+
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Silver
  
Strontium
  
Next Element
Indium
  
Zirconium
  
Valence Electron Potential
30.00 (-eV)  
99+
48.00 (-eV)  
31
Lattice Constant
297.94 pm  
99+
364.74 pm  
34
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.89  
2
1.57  
39
Mechanical
Density
  
  
Density At Room Temperature
8.65 g/cm3  
99+
4.47 g/cm3  
99+
Density When Liquid (at m.p.)
8.00 g/cm3  
99+
4.24 g/cm3  
99+
Tensile Strength
62.00 MPa  
34
160.00 MPa  
22
Viscosity
0.00  
13
0.00  
18
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
34
Vapor Pressure at 2000 K
0.00 (Pa)  
24
4.27 (Pa)  
10
Elasticity properties
  
  
Shear Modulus
19.00 GPa  
99+
25.60 GPa  
37
Bulk Modulus
42.00 GPa  
34
41.20 GPa  
35
Young's Modulus
50.00 GPa  
39
63.50 GPa  
34
Poisson Ratio
0.30  
14
0.24  
26
Other Mechanical Properties
Ductile, Malleable  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
8.65  
99+
4.47  
99+
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
18
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Semiconductor  
Conductor  
Resistivity
72.70 nΩ·m  
36
596.00 nΩ·m  
8
Electrical Conductivity
0.14 106/cm Ω  
17
0.02 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
99+
29.60 kJ/mol  
36
Thermal
Specific Heat
0.23 J/(kg K)  
26
0.30 J/(kg K)  
18
Molar Heat Capacity
26.02 J/mol·K  
40
26.53 J/mol·K  
35
Thermal Conductivity
96.60 W/m·K  
16
17.20 W/m·K  
99+
Critical Temperature
594.00 K  
99+
1,799.00 K  
31
Thermal Expansion
30.80 µm/(m·K)  
10
10.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
100.00 kJ/mol  
99+
393.00 kJ/mol  
25
Enthalpy of Fusion
6.19 kJ/mol  
99+
17.15 kJ/mol  
16
Enthalpy of Atomization
113.00 kJ/mol  
99+
418.00 kJ/mol  
23
Standard Molar Entropy
51.80 J/mol.K  
38
44.40 J/mol.K  
99+
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