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Niobium vs Meitnerium


Meitnerium vs Niobium


Periodic Table

Symbol
Nb  
Mt  

Group Number
5  
13
9  
9

Period Number
5  
7  

Block
d block  
d block  

Element Family
Transition Metal  
Probably Transition  

CAS Number
7440031  
99+
54038016  
10

Space Group Name
Im_ 3m  
-  

Space Group Number
229.00  
2
166.00  
9

Facts

Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  
Meitnerium is named after Lise Meitner, an Austrian physicist.  

Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals  
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  

History
  
  

Who Discovered
Charles Hatchett  
Gesellschaft für Schwerionenforschung  

Discovery
In 1801  
In 1982  

Abundance
  
  

Abundance In Universe
0.00 %  
23
0.00 %  
40

Abundance In Sun
0.00 %  
23
-  

Abundance In Meteorites
0.00 %  
35
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
25
-  

Abundance In Oceans
0.00 %  
34
-  

Abundance In Humans
0.00 %  
24
-  

Uses

Uses & Benefits
  • Niobium alloys are used in jet engines and rockets and spacecraft, beams and girders for buildings and oil and gas pipelines.
  • It is used superconducting magnets in particles accelerators, NMR and MRI equipment.
  
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Ammunition Industry, Electrical Industry, Electronic Industry  
-  

Medical Uses
-  
-  

Other Uses
Alloys  
-  

Biological Properties
  
  

Toxicity
Low Toxic  
-  

Present in Human Body
Yes  
No  

In Blood
0.01 Blood/mg dm-3  
25
0.00 Blood/mg dm-3  
40

In Bone
0.07 p.p.m.  
30
0.00 p.p.m.  
99+

Physical

Melting Point
2,468.00 °C  
6
-  

Boiling Point
2,468.00 °C  
99+
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Gray  
-  

Luster
Metallic  
Unknown Luster  

Hardness
  
  

Mohs Hardness
6.00  
6
-  

Brinell Hardness
735.00 MPa  
15
400.00 MPa  
34

Vickers Hardness
870.00 MPa  
19
350.00 MPa  
99+

Speed of Sound
3,480.00 m/s  
31
3,200.00 m/s  
35

Optical Properties
  
  

Refractive Index
2.30  
8
1.30  
99+

Reflectivity
70.00 %  
13
68.00 %  
15

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Nb  
Mt  

Isotopes
  
  

Known Isotopes
17  
22
4  
33

Electronegativity
  
  

Pauling Electronegativity
1.60  
24
1.30  
33

Sanderson Electronegativity
1.42  
20
1.90  
13

Allred Rochow Electronegativity
1.23  
26
1.30  
25

Mulliken-Jaffe Electronegativity
1.60  
22
1.30  
33

Allen Electronegativity
1.41  
35
1.30  
40

Electropositivity
  
  

Pauling Electropositivity
2.40  
31
2.00  
99+

Ionization Energies
  
  

1st Energy Level
652.10 kJ/mol  
99+
800.80 kJ/mol  
15

2nd Energy Level
1,380.00 kJ/mol  
99+
1,823.60 kJ/mol  
18

3rd Energy Level
2,416.00 kJ/mol  
99+
2,904.20 kJ/mol  
31

4th Energy Level
3,700.00 kJ/mol  
99+
3,859.40 kJ/mol  
99+

5th Energy Level
4,877.00 kJ/mol  
99+
4,920.80 kJ/mol  
99+

6th Energy Level
9,847.00 kJ/mol  
17
8,000.00 kJ/mol  
34

7th Energy level
12,100.00 kJ/mol  
14
8,000.00 kJ/mol  
28

8th Energy Level
6,520.00 kJ/mol  
99+
8,000.00 kJ/mol  
28

9th Energy Level
5,470.00 kJ/mol  
99+
6,700.00 kJ/mol  
36

10th Energy Level
5,470.00 kJ/mol  
99+
5,800.00 kJ/mol  
99+

11th Energy Level
6,520.00 kJ/mol  
99+
6,300.00 kJ/mol  
99+

12th Energy Level
6,520.00 kJ/mol  
99+
0.00 kJ/mol  
99+

13th Energy Level
5,470.00 kJ/mol  
99+
8,000.00 kJ/mol  
20

14th Energy Level
691.00 kJ/mol  
99+
1,156.00 kJ/mol  
99+

15th Energy Level
65,200.00 kJ/mol  
35
80,000.00 kJ/mol  
17

16th Energy Level
652.10 kJ/mol  
99+
58,700.00 kJ/mol  
39

17th Energy Level
652.10 kJ/mol  
99+
1,110.00 kJ/mol  
20

18th Energy Level
6,520.00 kJ/mol  
37
8,000.00 kJ/mol  
23

19th Energy Level
652.10 kJ/mol  
99+
1,110.00 kJ/mol  
17

20th Energy Level
652.00 kJ/mol  
38
850.00 kJ/mol  
18

21st Energy Level
652.10 kJ/mol  
99+
800.00 kJ/mol  
99+

22nd Energy Level
694.00 kJ/mol  
30
380.00 kJ/mol  
99+

23rd Energy Level
4,490.00 kJ/mol  
30
8,000.00 kJ/mol  
9

24th Energy Level
652.10 kJ/mol  
33
565.60 kJ/mol  
99+

25th Energy Level
652.10 kJ/mol  
35
800.00 kJ/mol  
13

26th Energy Level
652.10 kJ/mol  
34
800.00 kJ/mol  
13

27th Energy Level
652.10 kJ/mol  
35
800.00 kJ/mol  
12

28th Energy Level
652.10 kJ/mol  
40
800.00 kJ/mol  
18

29th Energy Level
652.10 kJ/mol  
99+
800.00 kJ/mol  
18

30th Energy Level
652.00 kJ/mol  
37
800.00 kJ/mol  
13

Electrochemical Equivalent
0.69 g/amp-hr  
99+
3.00 g/amp-hr  
21

Electron Work Function
4.30 eV  
25
4.90 eV  
12

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity  

Atomic

Atomic Number
41  
99+
109  
9

Electron Configuration
[Kr] 4d4 5s1  
[Rn] 5f14 6d7 7s2  

Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Meitnerium.jpg#100  

Atom
  
  

Number of Protons
41  
99+
109  
9

Number of Neutrons
52  
99+
157  
8

Number of Electrons
41  
99+
109  
9

Radius of an Atom
  
  

Atomic Radius
146.00 pm  
37
122.00 pm  
99+

Covalent Radius
164.00 pm  
30
129.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
260.00 pm  
9

Atomic Weight
92.91 amu  
99+
278.00 amu  
7

Atomic Volume
10.87 cm3/mol  
99+
20.20 cm3/mol  
30

Adjacent Atomic Numbers
  
  

Previous Element
Zirconium
  
Hassium
  

Next Element

Valence Electron Potential
104.00 (-eV)  
8
31.20 (-eV)  
99+

Lattice Constant
330.04 pm  
99+
0.00 pm  
99+

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.47  
99+
1.59  
27

Mechanical

Density
  
  

Density At Room Temperature
8.57 g/cm3  
99+
37.40 g/cm3  
2

Density When Liquid (at m.p.)
8.57 g/cm3  
99+
37.40 g/cm3  
2

Tensile Strength
330.00 MPa  
14
80.00 MPa  
29

Viscosity
0.00  
22
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
36
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
38.00 GPa  
20
35.00 GPa  
21

Bulk Modulus
170.00 GPa  
10
0.00 GPa  
99+

Young's Modulus
105.00 GPa  
22
13.50 GPa  
99+

Poisson Ratio
0.40  
4
0.25  
24

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
8.57  
99+
37.40  
4

Magnetic Ordering
Paramagnetic  
Paramagnetic  

Permeability
0.00 H/m  
4
0.00 H/m  
12

Susceptibility
0.00  
30
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
-  

Resistivity
152.00 nΩ·m  
23
0.35 nΩ·m  
99+

Electrical Conductivity
0.07 106/cm Ω  
33
0.00 106/cm Ω  
99+

Electron Affinity
86.10 kJ/mol  
14
50.00 kJ/mol  
26

Thermal

Specific Heat
0.26 J/(kg K)  
20
0.10 J/(kg K)  
99+

Molar Heat Capacity
24.60 J/mol·K  
99+
27.00 J/mol·K  
29

Thermal Conductivity
53.70 W/m·K  
29
0.00 W/m·K  
99+

Critical Temperature
2,750.00 K  
7
1,323.00 K  
99+

Thermal Expansion
7.30 µm/(m·K)  
99+
10.30 µm/(m·K)  
99+

Enthalpy
  
  

Enthalpy of Vaporization
696.60 kJ/mol  
5
110.00 kJ/mol  
99+

Enthalpy of Fusion
27.20 kJ/mol  
6
-  

Enthalpy of Atomization
745.00 kJ/mol  
4
350.20 kJ/mol  
37

Standard Molar Entropy
36.40 J/mol.K  
99+
63.80 J/mol.K  
22

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