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Dubnium vs Yttrium

Dubnium
Yttrium
Yttrium vs Dubnium


Periodic Table
Symbol
Db  
Y  
Group Number
5  
13
3  
15
Period Number
7  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
53850354  
14
7440655  
25
Space Group Name
Not Available  
P63/mmc  
Space Group Number
Not Available  
194.00  
5
Facts
Interesting Facts
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Joint Institute for Nuclear Research  
Johan Gadolin  
Discovery
In 1968  
In 1794  
Abundance
  
  
Abundance In Universe
Not Available  
7 * 10-7 %  
17
Abundance In Sun
~-9999 %  
~0.0000001 %  
26
Abundance In Meteorites
Not Available  
0.00 %  
21
Abundance In Earth's Crust
Not Available  
0.00 %  
22
Abundance In Oceans
Not Available  
0.00 %  
25
Uses
Uses & Benefits
  • Currently known uses of Dubnium metal are limited to research purpose only.
  
  • 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
NA  
Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
Unknown  
Highly Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
26
In Bone
0.00 p.p.m.  
36
0.07 p.p.m.  
25
Physical Properties
Melting Point
Not Available  
1,523.00 °C  
27
Boiling Point
Not Available  
3,337.00 °C  
21
Appearance
  
  
Physical State
Solid  
Solid  
Color
Unknown  
Silvery White  
Luster
Unknown Luster  
NA  
Hardness
  
  
Brinell Hardness
Not Available  
589.00 MPa  
22
Speed of Sound
Not Available  
3,300.00 m/s  
23
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
Db  
Y  
Isotopes
  
  
Known Isotopes
10  
28
19  
20
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.22  
38
Sanderson Electronegativity
Not Available  
0.65  
29
Allred Rochow Electronegativity
Not Available  
1.11  
29
Allen Electronegativity
Not Available  
1.12  
38
Electropositivity
  
  
Pauling Electropositivity
Not Available  
2.78  
16
Ionization Energies
  
  
1st Energy Level
664.80 kJ/mol  
38
600.00 kJ/mol  
99+
2nd Energy Level
1,546.70 kJ/mol  
38
1,180.00 kJ/mol  
99+
3rd Energy Level
2,378.40 kJ/mol  
99+
1,980.00 kJ/mol  
99+
4th Energy Level
3,298.80 kJ/mol  
99+
5,847.00 kJ/mol  
10
5th Energy Level
4,305.20 kJ/mol  
39
7,430.00 kJ/mol  
14
6th Energy Level
Not Available  
8,970.00 kJ/mol  
17
7th Energy level
Not Available  
11,190.00 kJ/mol  
18
8th Energy Level
Not Available  
12,450.00 kJ/mol  
18
9th Energy Level
Not Available  
14,110.00 kJ/mol  
19
10th Energy Level
Not Available  
18,400.00 kJ/mol  
17
11th Energy Level
Not Available  
19,900.00 kJ/mol  
18
12th Energy Level
Not Available  
36,090.00 kJ/mol  
5
Electrochemical Equivalent
Not Available  
1.11 g/amp-hr  
99+
Electron Work Function
Not Available  
3.10 eV  
35
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
105  
13
39  
99+
Electron Configuration
[Rn] 5f14 6d3 7s2  
[Kr] 4d1 5s2  
Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Yttrium.jpg#100  
Atom
  
  
Number of Protons
105  
13
39  
99+
Number of Neutrons
157  
7
50  
99+
Number of Electrons
105  
13
39  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
39
180.00 pm  
14
Covalent Radius
149.00 pm  
35
190.00 pm  
18
Van der Waals Radius
Not Available  
200.00 pm  
28
Atomic Weight
268.00 amu  
10
88.91 amu  
99+
Atomic Volume
Not Available  
19.80 cm3/mol  
21
Adjacent Atomic Numbers
  
  
Previous Element
Rutherfordium
  
Strontium
  
Next Element
Seaborgium
  
Zirconium
  
Valence Electron Potential
Not Available  
48.00 (-eV)  
30
Lattice Constant
Not Available  
364.74 pm  
31
Lattice Angles
NA  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
Not Available  
1.57  
16
Mechanical Properties
Density
  
  
Density At Room Temperature
29.30 g/cm3  
5
4.47 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
4.24 g/cm3  
99+
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available  
0.00 (Pa)  
32
Vapor Pressure at 2000 K
Not Available  
4.27 (Pa)  
10
Elasticity properties
  
  
Shear Modulus
Not Available  
25.60 GPa  
30
Bulk Modulus
Not Available  
41.20 GPa  
30
Young's Modulus
Not Available  
63.50 GPa  
32
Poisson Ratio
Not Available  
0.24  
26
Other Mechanical Properties
Unknown  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
4.47  
99+
Magnetic Ordering
Unknown  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Unknown  
Conductor  
Resistivity
Not Available  
596.00 nΩ·m  
8
Electrical Conductivity
Not Available  
0.02 106/cm Ω  
99+
Electron Affinity
Not Available  
29.60 kJ/mol  
30
Thermal Properties
Specific Heat
Not Available  
0.30 J/(kg K)  
18
Molar Heat Capacity
Not Available  
26.53 J/mol·K  
27
Thermal Conductivity
Not Available  
17.20 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
10.60 µm/(m·K)  
37
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
393.00 kJ/mol  
18
Enthalpy of Fusion
Not Available  
17.15 kJ/mol  
16
Enthalpy of Atomization
Not Available  
418.00 kJ/mol  
18
Standard Molar Entropy
Not Available  
44.40 J/mol.K  
33
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