Darmstadtium vs Osmium
Periodic Table
Symbol
Ds
Os
Group Number
10
8
8
10
Period Number
7
6
Block
d block
d block
Element Family
Probably Transition
Transition Metal
CAS Number
54083771
8
7440042
99+
Space Group Name
Not Available
P63/mmc
Space Group Number
Not Available
194.00
5
Facts
Interesting Facts
Not Available
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
Sources
Synthetically Produced
Found As a By-product, Found in Minerals, Mining
History
Who Discovered
Gesellschaft für Schwerionenforschung
Smithson Tennant
Discovery
In 1994
In 1803
Abundance
Abundance In Universe
Not Available
3 * 10-7 %
21
Abundance In Sun
~-9999 %
~0.0000002 %
25
Abundance In Meteorites
Not Available
0.00 %
28
Abundance In Earth's Crust
Not Available
0.00 %
99+
Uses
Uses & Benefits
- Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
- It is also used as industrial catalyst to speed up the chemical reaction.
Industrial Uses
NA
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
NA
Other Uses
Research Purposes
Alloys
Biological Properties
Toxicity
Unknown
Highly Toxic
Present in Human Body
No
No
In Blood
0.00 Blood/mg dm-3
37
Not Available
In Bone
0.00 p.p.m.
36
Not Available
Physical Properties
Melting Point
Not Available
3,045.00 °C
3
Boiling Point
Not Available
5,027.00 °C
6
Appearance
Physical State
Solid
Solid
Color
Unknown
Silvery Bluish-Gray
Luster
Unknown Luster
Metallic
Hardness
Mohs Hardness
Not Available
7.00
3
Brinell Hardness
Not Available
3,490.00 MPa
1
Speed of Sound
5,090.00 m/s
9
4,940.00 m/s
11
Optical Properties
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
Ds
Os
Isotopes
Known Isotopes
9
29
35
4
Electronegativity
Pauling Electronegativity
Not Available
2.20
4
Allred Rochow Electronegativity
Not Available
1.52
12
Allen Electronegativity
Not Available
1.65
19
Electropositivity
Pauling Electropositivity
Not Available
1.80
99+
Ionization Energies
1st Energy Level
955.20 kJ/mol
5
840.00 kJ/mol
12
2nd Energy Level
1,891.10 kJ/mol
16
1,309.80 kJ/mol
99+
3rd Energy Level
3,029.60 kJ/mol
25
1,600.00 kJ/mol
99+
4th Energy Level
3,955.90 kJ/mol
40
Not Available
5th Energy Level
5,113.70 kJ/mol
33
Not Available
Electrochemical Equivalent
Not Available
1.77 g/amp-hr
38
Electron Work Function
Not Available
4.83 eV
8
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization, Solubility
Atomic Properties
Atomic Number
110
8
76
40
Electron Configuration
[Rn] 5f14 6d8 7s2
[Xe] 4f14 5d6 6s2
Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
110
8
76
39
Number of Neutrons
161
3
114
25
Number of Electrons
110
8
76
39
Radius of an Atom
Atomic Radius
132.00 pm
99+
133.80 pm
99+
Covalent Radius
128.00 pm
99+
Not Available
Van der Waals Radius
Not Available
216.00 pm
24
Atomic Weight
281.00 amu
6
190.23 amu
35
Atomic Volume
Not Available
8.49 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
Not Available
91.40 (-eV)
12
Lattice Constant
Not Available
273.44 pm
99+
Lattice Angles
NA
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
1.58
14
Mechanical Properties
Density
Density At Room Temperature
Not Available
22.59 g/cm3
9
Density When Liquid (at m.p.)
Not Available
20.00 g/cm3
1
Tensile Strength
Not Available
1,000.00 MPa
4
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
Not Available
0.00 (Pa)
28
Elasticity properties
Shear Modulus
Not Available
222.00 GPa
1
Bulk Modulus
Not Available
462.00 GPa
1
Poisson Ratio
Not Available
0.25
24
Other Mechanical Properties
Unknown
Ductile
Magnetic Properties
Magnetic Characteristics
Specific Gravity
Not Available
22.57
2
Magnetic Ordering
Unknown
Paramagnetic
Electrical Properties
Electrical Property
Unknown
Conductor
Resistivity
Not Available
81.20 nΩ·m
35
Electrical Conductivity
Not Available
0.11 106/cm Ω
18
Electron Affinity
Not Available
106.10 kJ/mol
9
Thermal Properties
Specific Heat
Not Available
0.13 J/(kg K)
39
Molar Heat Capacity
Not Available
24.70 J/mol·K
99+
Thermal Conductivity
Not Available
87.60 W/m·K
19
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
5.10 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
Not Available
627.60 kJ/mol
7
Enthalpy of Fusion
Not Available
29.30 kJ/mol
4
Enthalpy of Atomization
Not Available
669.00 kJ/mol
6
Standard Molar Entropy
Not Available
32.60 J/mol.K
99+
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