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Meitnerium vs Cadmium

Meitnerium
Cadmium
Cadmium vs Meitnerium


Periodic Table
Symbol
Mt  
Cd  
Group Number
9  
9
12  
6
Period Number
7  
5  
Block
d block  
d block  
Element Family
Probably Transition  
Transition Metal  
CAS Number
54038016  
10
7440439  
99+
Space Group Name
Not Available  
P63/mmc  
Space Group Number
Not Available  
194.00  
5
Facts
Interesting Facts
Not Available  
  • 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.
  
Sources
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  
Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Karl Samuel Leberecht Hermann and Friedrich Stromeyer  
Discovery
In 1982  
In 1817  
Abundance
  
  
Abundance In Universe
Not Available  
2 * 10-7 %  
22
Abundance In Sun
~-9999 %  
~0.0000006 %  
21
Abundance In Meteorites
Not Available  
0.00 %  
31
Abundance In Earth's Crust
Not Available  
0.00 %  
99+
Abundance In Oceans
Not Available  
0.00 %  
28
Abundance In Humans
Not Available  
0.00 %  
11
Uses
Uses & Benefits
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  
  • 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.
  
Industrial Uses
NA  
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
NA  
Alloys  
Biological Properties
  
  
Toxicity
Unknown  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.01 Blood/mg dm-3  
24
In Bone
0.00 p.p.m.  
36
1.80 p.p.m.  
15
Physical Properties
Melting Point
Not Available  
320.90 °C  
99+
Boiling Point
Not Available  
765.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Unknown  
Silvery Bluish-Gray  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
Not Available  
2.00  
16
Brinell Hardness
Not Available  
203.00 MPa  
39
Speed of Sound
Not Available  
2,310.00 m/s  
39
Optical Properties
  
  
Reflectivity
Not Available  
67.00 %  
11
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
Mt  
Cd  
Isotopes
  
  
Known Isotopes
4  
33
34  
5
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.69  
17
Sanderson Electronegativity
Not Available  
1.98  
9
Allred Rochow Electronegativity
Not Available  
1.46  
15
Mulliken-Jaffe Electronegativity
Not Available  
1.53  
13
Allen Electronegativity
Not Available  
1.52  
27
Electropositivity
  
  
Pauling Electropositivity
Not Available  
2.31  
37
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol  
15
867.80 kJ/mol  
11
2nd Energy Level
1,823.60 kJ/mol  
17
1,631.40 kJ/mol  
32
3rd Energy Level
2,904.20 kJ/mol  
31
3,616.00 kJ/mol  
13
4th Energy Level
3,859.40 kJ/mol  
99+
Not Available  
5th Energy Level
4,920.80 kJ/mol  
35
Not Available  
Electrochemical Equivalent
Not Available  
2.10 g/amp-hr  
27
Electron Work Function
Not Available  
4.22 eV  
22
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
109  
9
48  
99+
Electron Configuration
[Rn] 5f14 6d7 7s2  
[Kr] 4d10 5s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100  
HCP-Crystal-Structure-of-Cadmium.jpg#100  
Atom
  
  
Number of Protons
109  
9
48  
99+
Number of Neutrons
157  
7
64  
99+
Number of Electrons
109  
9
48  
99+
Radius of an Atom
  
  
Atomic Radius
122.00 pm  
99+
151.00 pm  
32
Covalent Radius
129.00 pm  
99+
144.00 pm  
40
Van der Waals Radius
Not Available  
158.00 pm  
99+
Atomic Weight
278.00 amu  
7
112.41 amu  
99+
Atomic Volume
Not Available  
13.10 cm3/mol  
39
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Silver
  
Next Element
Darmstadtium
  
Indium
  
Valence Electron Potential
Not Available  
30.00 (-eV)  
99+
Lattice Constant
Not Available  
297.94 pm  
99+
Lattice Angles
NA  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
Not Available  
1.89  
1
Mechanical Properties
Density
  
  
Density At Room Temperature
37.40 g/cm3  
2
8.65 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
8.00 g/cm3  
28
Tensile Strength
Not Available  
62.00 MPa  
16
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Elasticity properties
  
  
Shear Modulus
Not Available  
19.00 GPa  
35
Bulk Modulus
Not Available  
42.00 GPa  
29
Young's Modulus
Not Available  
50.00 GPa  
36
Poisson Ratio
Not Available  
0.30  
14
Other Mechanical Properties
NA  
Ductile, Malleable  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
8.65  
36
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Electrical Properties
  
  
Electrical Property
Unknown  
Semiconductor  
Resistivity
Not Available  
72.70 nΩ·m  
36
Electrical Conductivity
Not Available  
0.14 106/cm Ω  
15
Electron Affinity
Not Available  
0.00 kJ/mol  
40
Thermal Properties
Specific Heat
Not Available  
0.23 J/(kg K)  
26
Molar Heat Capacity
Not Available  
26.02 J/mol·K  
32
Thermal Conductivity
Not Available  
96.60 W/m·K  
16
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
30.80 µm/(m·K)  
10
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
100.00 kJ/mol  
99+
Enthalpy of Fusion
Not Available  
6.19 kJ/mol  
99+
Enthalpy of Atomization
Not Available  
113.00 kJ/mol  
99+
Standard Molar Entropy
Not Available  
51.80 J/mol.K  
27
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