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Darmstadtium vs Cadmium

Darmstadtium
Cadmium
Cadmium vs Darmstadtium


Periodic Table
Symbol
Ds  
Cd  
Group Number
10  
8
12  
6
Period Number
7  
5  
Block
d block  
d block  
Element Family
Probably Transition  
Transition Metal  
CAS Number
54083771  
8
7440439  
99+
Space Group Name
-  
P63/mmc  
Space Group Number
166.00  
9
194.00  
7
Facts
Interesting Facts
Darmstadtium is a synthetic element that is highly radioactive.  
  • 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
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 1994  
In 1817  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
23
Abundance In Sun
-  
0.00 %  
21
Abundance In Meteorites
0.00 %  
99+
0.00 %  
31
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
28
Abundance In Humans
-  
0.00 %  
12
Uses
Uses & Benefits
  • Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
  
  • 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
-  
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.01 Blood/mg dm-3  
24
In Bone
0.00 p.p.m.  
99+
1.80 p.p.m.  
16
Physical
Melting Point
-  
320.90 °C  
99+
Boiling Point
0.00 °C  
99+
765.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silvery Bluish-Gray  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
2.00  
17
Brinell Hardness
350.00 MPa  
36
203.00 MPa  
99+
Vickers Hardness
500.00 MPa  
35
90.00 MPa  
99+
Speed of Sound
5,090.00 m/s  
13
2,310.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
1.71  
26
Reflectivity
50.00 %  
31
67.00 %  
16
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ds  
Cd  
Isotopes
  
  
Known Isotopes
9  
29
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.10  
99+
1.69  
18
Sanderson Electronegativity
1.30  
25
1.98  
11
Allred Rochow Electronegativity
1.10  
31
1.46  
16
Mulliken-Jaffe Electronegativity
1.10  
99+
1.53  
25
Allen Electronegativity
1.10  
99+
1.52  
30
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.31  
37
Ionization Energies
  
  
1st Energy Level
955.20 kJ/mol  
5
867.80 kJ/mol  
11
2nd Energy Level
1,891.10 kJ/mol  
16
1,631.40 kJ/mol  
33
3rd Energy Level
3,029.60 kJ/mol  
25
3,616.00 kJ/mol  
13
4th Energy Level
3,955.90 kJ/mol  
99+
867.80 kJ/mol  
99+
5th Energy Level
5,113.70 kJ/mol  
99+
4,040.00 kJ/mol  
99+
6th Energy Level
10,700.00 kJ/mol  
12
8,640.00 kJ/mol  
28
7th Energy level
3,540.00 kJ/mol  
99+
8,640.00 kJ/mol  
24
8th Energy Level
6,630.00 kJ/mol  
40
8,640.00 kJ/mol  
24
9th Energy Level
7,180.00 kJ/mol  
29
8,670.00 kJ/mol  
22
10th Energy Level
10,700.00 kJ/mol  
20
8,650.00 kJ/mol  
25
11th Energy Level
3,540.00 kJ/mol  
99+
8,670.00 kJ/mol  
22
12th Energy Level
34,800.00 kJ/mol  
28
86,400.00 kJ/mol  
3
13th Energy Level
5,280.00 kJ/mol  
99+
8,640.00 kJ/mol  
17
14th Energy Level
1,130.00 kJ/mol  
99+
8,650.00 kJ/mol  
15
15th Energy Level
34,400.00 kJ/mol  
99+
86,400.00 kJ/mol  
10
16th Energy Level
34,800.00 kJ/mol  
99+
86,400.00 kJ/mol  
10
17th Energy Level
1,139.00 kJ/mol  
18
864.90 kJ/mol  
28
18th Energy Level
1,080.00 kJ/mol  
99+
8,670.00 kJ/mol  
17
19th Energy Level
1,139.90 kJ/mol  
15
867.80 kJ/mol  
26
20th Energy Level
0.00 kJ/mol  
99+
865.00 kJ/mol  
16
21st Energy Level
1,080.00 kJ/mol  
32
8,670.00 kJ/mol  
10
22nd Energy Level
350.00 kJ/mol  
99+
864.00 kJ/mol  
14
23rd Energy Level
1,100.00 kJ/mol  
35
864.90 kJ/mol  
40
24th Energy Level
565.80 kJ/mol  
99+
864.90 kJ/mol  
10
25th Energy Level
0.00 kJ/mol  
99+
864.00 kJ/mol  
8
26th Energy Level
582.30 kJ/mol  
99+
864.90 kJ/mol  
8
27th Energy Level
0.00 kJ/mol  
99+
864.90 kJ/mol  
8
28th Energy Level
1,130.00 kJ/mol  
4
864.90 kJ/mol  
11
29th Energy Level
1,130.00 kJ/mol  
4
864.90 kJ/mol  
12
30th Energy Level
663.20 kJ/mol  
33
864.00 kJ/mol  
8
Electrochemical Equivalent
3.00 g/amp-hr  
21
2.10 g/amp-hr  
31
Electron Work Function
4.90 eV  
12
4.22 eV  
29
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
110  
8
48  
99+
Electron Configuration
[Rn] 5f14 6d8 7s2  
[Kr] 4d10 5s2  
Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Cadmium.jpg#100  
Atom
  
  
Number of Protons
110  
8
48  
99+
Number of Neutrons
161  
4
64  
99+
Number of Electrons
110  
8
48  
99+
Radius of an Atom
  
  
Atomic Radius
132.00 pm  
99+
151.00 pm  
34
Covalent Radius
128.00 pm  
99+
144.00 pm  
99+
Van der Waals Radius
0.00 pm  
99+
158.00 pm  
99+
Atomic Weight
281.00 amu  
6
112.41 amu  
99+
Atomic Volume
20.50 cm3/mol  
29
13.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Meitnerium
  
Silver
  
Next Element
Roentgenium
  
Indium
  
Valence Electron Potential
0.00 (-eV)  
99+
30.00 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
297.94 pm  
99+
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.61  
19
1.89  
2
Mechanical
Density
  
  
Density At Room Temperature
35.00 g/cm3  
4
8.65 g/cm3  
99+
Density When Liquid (at m.p.)
34.80 g/cm3  
5
8.00 g/cm3  
99+
Tensile Strength
0.10 MPa  
99+
62.00 MPa  
34
Viscosity
0.00  
25
0.00  
13
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
33.00 GPa  
23
19.00 GPa  
99+
Bulk Modulus
38.00 GPa  
99+
42.00 GPa  
34
Young's Modulus
0.00 GPa  
99+
50.00 GPa  
39
Poisson Ratio
0.25  
24
0.30  
14
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
34.80  
7
8.65  
99+
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
10
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
Semiconductor  
Resistivity
8.30 nΩ·m  
99+
72.70 nΩ·m  
36
Electrical Conductivity
0.00 106/cm Ω  
99+
0.14 106/cm Ω  
17
Electron Affinity
-  
0.00 kJ/mol  
99+
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.23 J/(kg K)  
26
Molar Heat Capacity
27.30 J/mol·K  
23
26.02 J/mol·K  
40
Thermal Conductivity
0.00 W/m·K  
99+
96.60 W/m·K  
16
Critical Temperature
1,323.00 K  
99+
594.00 K  
99+
Thermal Expansion
12.90 µm/(m·K)  
38
30.80 µm/(m·K)  
10
Enthalpy
  
  
Enthalpy of Vaporization
348.90 kJ/mol  
34
100.00 kJ/mol  
99+
Enthalpy of Fusion
-  
6.19 kJ/mol  
99+
Enthalpy of Atomization
-  
113.00 kJ/mol  
99+
Standard Molar Entropy
57.00 J/mol.K  
30
51.80 J/mol.K  
38
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