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Niobium Beryllium Comparison


Beryllium Niobium comparison


Periodic Table

Symbol
Nb   
Be   

Group Number
5   
13
2   
16

Period Number
5   
2   

Block
d block   
s block   

Element Family
Transition Metal   
Alkaline Earth   

CAS Number
7440031   
99+
7440417   
99+

Space Group Name
Im_ 3m   
P63/mmc   

Space Group Number
229.00   
1
194.00   
5

Facts

Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
  

Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals   

History
  
  

Who Discovered
Charles Hatchett   
Louis Nicolas Vauquelin   

Discovery
In 1801   
In 1797   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
1 * 10-7 %   
23

Abundance In Sun
~0.0000004 %   
23
~0.00000001 %   
29

Abundance In Meteorites
0.00 %   
35
0.00 %   
99+

Abundance In Earth's Crust
0.00 %   
25
0.00 %   
35

Abundance In Oceans
0.00 %   
34
0.00 %   
39

Abundance In Humans
Not Available   
0.00 %   
19

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.
  
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  

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

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Low Toxic   
Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.01 Blood/mg dm-3   
25
0.00 Blood/mg dm-3   
32

In Bone
0.07 p.p.m.   
25
0.00 p.p.m.   
32

Physical Properties

Melting Point
2,468.00 °C   
6
1,278.00 °C   
36

Boiling Point
2,468.00 °C   
99+
2,970.00 °C   
32

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
White Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.00   
6
5.50   
7

Brinell Hardness
735.00 MPa   
14
590.00 MPa   
21

Vickers Hardness
870.00 MPa   
12
1,670.00 MPa   
4

Speed of Sound
3,480.00 m/s   
21
12,890.00 m/s   
2

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
Nb   
Be   

Isotopes
  
  

Known Isotopes
17   
22
9   
29

Electronegativity
  
  

Pauling Electronegativity
1.60   
23
1.57   
24

Sanderson Electronegativity
1.42   
16
1.81   
12

Allred Rochow Electronegativity
1.23   
25
1.47   
14

Mulliken-Jaffe Electronegativity
Not Available   
1.54   
12

Allen Electronegativity
1.41   
31
1.58   
23

Electropositivity
  
  

Pauling Electropositivity
2.40   
31
2.43   
30

Ionization Energies
  
  

1st Energy Level
652.10 kJ/mol   
99+
899.50 kJ/mol   
7

2nd Energy Level
1,380.00 kJ/mol   
99+
1,757.10 kJ/mol   
23

3rd Energy Level
2,416.00 kJ/mol   
99+
14,848.70 kJ/mol   
2

4th Energy Level
3,700.00 kJ/mol   
99+
21,006.60 kJ/mol   
2

5th Energy Level
4,877.00 kJ/mol   
36
Not Available   

6th Energy Level
9,847.00 kJ/mol   
11
Not Available   

7th Energy level
12,100.00 kJ/mol   
14
Not Available   

Electrochemical Equivalent
0.69 g/amp-hr   
99+
0.17 g/amp-hr   
99+

Electron Work Function
4.30 eV   
18
4.98 eV   
6

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

Atomic Properties

Atomic Number
41   
99+
4   
99+

Electron Configuration
[Kr] 4d4 5s1   
[He] 2s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   

Atom
  
  

Number of Protons
41   
99+
4   
99+

Number of Neutrons
52   
99+
5   
99+

Number of Electrons
41   
99+
4   
99+

Radius of an Atom
  
  

Atomic Radius
146.00 pm   
35
112.00 pm   
99+

Covalent Radius
164.00 pm   
28
96.00 pm   
99+

Van der Waals Radius
200.00 pm   
28
153.00 pm   
99+

Atomic Weight
92.91 amu   
99+
9.01 amu   
99+

Atomic Volume
10.87 cm3/mol   
99+
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Zirconium
  
Lithium
  

Next Element
Molybdenum
  
Sodium
  

Valence Electron Potential
104.00 (-eV)   
8
82.00 (-eV)   
15

Lattice Constant
330.04 pm   
99+
228.58 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
1.57   
18

Mechanical Properties

Density
  
  

Density At Room Temperature
8.57 g/cm3   
99+
1.85 g/cm3   
99+

Density When Liquid (at m.p.)
Not Available   
1.69 g/cm3   
99+

Tensile Strength
330.00 MPa   
12
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
19

Vapor Pressure at 2000 K
0.00 (Pa)   
27
Not Available   

Elasticity properties
  
  

Shear Modulus
38.00 GPa   
19
132.00 GPa   
7

Bulk Modulus
170.00 GPa   
10
130.00 GPa   
13

Young's Modulus
105.00 GPa   
20
287.00 GPa   
7

Poisson Ratio
0.40   
4
0.03   
35

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.57   
37
1.85   
99+

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

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

Electrical Conductivity
0.07 106/cm Ω   
28
0.31 106/cm Ω   
5

Electron Affinity
86.10 kJ/mol   
12
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.26 J/(kg K)   
20
1.82 J/(kg K)   
2

Molar Heat Capacity
24.60 J/mol·K   
99+
16.44 J/mol·K   
99+

Thermal Conductivity
53.70 W/m·K   
29
200.00 W/m·K   
6

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
7.30 µm/(m·K)   
99+
11.30 µm/(m·K)   
34

Enthalpy
  
  

Enthalpy of Vaporization
696.60 kJ/mol   
4
294.70 kJ/mol   
30

Enthalpy of Fusion
27.20 kJ/mol   
6
11.72 kJ/mol   
30

Enthalpy of Atomization
745.00 kJ/mol   
4
326.40 kJ/mol   
30

Standard Molar Entropy
36.40 J/mol.K   
99+
9.50 J/mol.K   
99+

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