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Beryllium vs Nobelium

Beryllium
Nobelium
Nobelium vs Beryllium


Periodic Table
Symbol
Be  
No  
Group Number
2  
16
3  
15
Period Number
2  
7  
Block
s block  
f block  
Element Family
Alkaline Earth  
Actinide  
CAS Number
7440417  
99+
10028145  
16
Space Group Name
P63/mmc  
-  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • 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.
  
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals  
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining  
History
  
  
Who Discovered
Louis Nicolas Vauquelin  
Joint Institute for Nuclear Research  
Discovery
In 1797  
In 1966  
Abundance
  
  
Abundance In Universe
0.00 %  
24
-  
Abundance In Sun
0.00 %  
29
-  
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
0.00 %  
35
-  
Abundance In Oceans
0.00 %  
39
-  
Abundance In Humans
0.00 %  
22
-  
Uses
Uses & Benefits
  • 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.
  
  • Currently known uses of Nobelium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
Research Purposes  
Biological Properties
  
  
Toxicity
Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
35
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
37
0.00 p.p.m.  
99+
Physical
Melting Point
1,278.00 °C  
36
827.00 °C  
99+
Boiling Point
2,970.00 °C  
33
2,600.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
White Gray  
-  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
5.50  
7
-  
Brinell Hardness
590.00 MPa  
25
500.00 MPa  
28
Vickers Hardness
1,670.00 MPa  
9
500.00 MPa  
35
Speed of Sound
12,890.00 m/s  
2
1,100.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.56  
34
1.30  
99+
Reflectivity
65.00 %  
18
61.00 %  
22
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Be  
No  
Isotopes
  
  
Known Isotopes
9  
29
13  
26
Electronegativity
  
  
Pauling Electronegativity
1.57  
25
1.30  
33
Sanderson Electronegativity
1.81  
15
1.30  
25
Allred Rochow Electronegativity
1.47  
15
1.20  
28
Mulliken-Jaffe Electronegativity
1.54  
24
1.30  
33
Allen Electronegativity
1.58  
26
1.10  
99+
Electropositivity
  
  
Pauling Electropositivity
2.43  
30
2.70  
22
Ionization Energies
  
  
1st Energy Level
899.50 kJ/mol  
7
642.00 kJ/mol  
99+
2nd Energy Level
1,757.10 kJ/mol  
24
1,254.00 kJ/mol  
99+
3rd Energy Level
14,848.70 kJ/mol  
2
2,643.00 kJ/mol  
99+
4th Energy Level
21,006.60 kJ/mol  
2
3,956.00 kJ/mol  
99+
5th Energy Level
2,970.00 kJ/mol  
99+
6,400.00 kJ/mol  
35
6th Energy Level
1,470.00 kJ/mol  
99+
6,400.00 kJ/mol  
99+
7th Energy level
2,970.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
8th Energy Level
2,970.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
9th Energy Level
2,970.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
10th Energy Level
2,970.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
11th Energy Level
2,970.00 kJ/mol  
99+
6,420.00 kJ/mol  
99+
12th Energy Level
29,700.00 kJ/mol  
35
64,000.00 kJ/mol  
8
13th Energy Level
2,970.00 kJ/mol  
99+
6,400.00 kJ/mol  
36
14th Energy Level
2,970.00 kJ/mol  
99+
6,400.00 kJ/mol  
26
15th Energy Level
89,900.00 kJ/mol  
5
64,000.00 kJ/mol  
36
16th Energy Level
89,900.00 kJ/mol  
8
64,000.00 kJ/mol  
27
17th Energy Level
2,970.00 kJ/mol  
14
641.00 kJ/mol  
99+
18th Energy Level
8,995.00 kJ/mol  
13
3,500.00 kJ/mol  
99+
19th Energy Level
899.50 kJ/mol  
22
627.60 kJ/mol  
99+
20th Energy Level
899.00 kJ/mol  
12
627.00 kJ/mol  
99+
21st Energy Level
2,970.00 kJ/mol  
26
917.00 kJ/mol  
34
22nd Energy Level
899.00 kJ/mol  
10
627.00 kJ/mol  
36
23rd Energy Level
2,970.00 kJ/mol  
31
6,410.00 kJ/mol  
12
24th Energy Level
297.30 kJ/mol  
99+
627.00 kJ/mol  
39
25th Energy Level
2,970.00 kJ/mol  
2
0.00 kJ/mol  
99+
26th Energy Level
2,970.00 kJ/mol  
2
601.20 kJ/mol  
99+
27th Energy Level
297.30 kJ/mol  
99+
641.00 kJ/mol  
37
28th Energy Level
297.30 kJ/mol  
99+
641.60 kJ/mol  
99+
29th Energy Level
2,970.00 kJ/mol  
2
641.00 kJ/mol  
99+
30th Energy Level
2,970.00 kJ/mol  
2
627.00 kJ/mol  
99+
Electrochemical Equivalent
0.17 g/amp-hr  
99+
4.83 g/amp-hr  
4
Electron Work Function
4.98 eV  
10
4.90 eV  
12
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
4  
99+
102  
16
Electron Configuration
[He] 2s2  
[Rn] 5f14 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Not Known  
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100  
Unknown-Crystal-Structure-of-Nobelium.jpg#100  
Atom
  
  
Number of Protons
4  
99+
102  
16
Number of Neutrons
5  
99+
157  
8
Number of Electrons
4  
99+
102  
16
Radius of an Atom
  
  
Atomic Radius
112.00 pm  
99+
176.00 pm  
20
Covalent Radius
96.00 pm  
99+
157.00 pm  
33
Van der Waals Radius
153.00 pm  
99+
246.00 pm  
12
Atomic Weight
9.01 amu  
99+
259.00 amu  
13
Atomic Volume
5.00 cm3/mol  
99+
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Lithium
  
Mendelevium
  
Next Element
Sodium
  
Lawrencium
  
Valence Electron Potential
82.00 (-eV)  
15
26.00 (-eV)  
99+
Lattice Constant
228.58 pm  
99+
-  
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.57  
99+
1.76  
5
Mechanical
Density
  
  
Density At Room Temperature
1.85 g/cm3  
99+
9.90 g/cm3  
99+
Density When Liquid (at m.p.)
1.69 g/cm3  
99+
9.90 g/cm3  
99+
Tensile Strength
287.00 MPa  
16
80.00 MPa  
29
Viscosity
0.00  
17
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
20
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
28
Elasticity properties
  
  
Shear Modulus
132.00 GPa  
7
27.00 GPa  
34
Bulk Modulus
130.00 GPa  
13
8.70 GPa  
99+
Young's Modulus
287.00 GPa  
7
12.30 GPa  
99+
Poisson Ratio
0.03  
36
0.30  
14
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
1.85  
99+
9.90  
99+
Magnetic Ordering
Diamagnetic  
-  
Permeability
0.00 H/m  
12
0.00 H/m  
3
Susceptibility
0.00  
11
0.00  
24
Electrical Properties
  
  
Electrical Property
Semiconductor  
-  
Resistivity
36.00 nΩ·m  
99+
0.68 nΩ·m  
99+
Electrical Conductivity
0.31 106/cm Ω  
5
0.00 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
99+
50.00 kJ/mol  
26
Thermal
Specific Heat
1.82 J/(kg K)  
2
0.10 J/(kg K)  
99+
Molar Heat Capacity
16.44 J/mol·K  
99+
27.00 J/mol·K  
29
Thermal Conductivity
200.00 W/m·K  
6
0.10 W/m·K  
99+
Critical Temperature
1,551.00 K  
39
1,100.00 K  
99+
Thermal Expansion
11.30 µm/(m·K)  
99+
11.00 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
294.70 kJ/mol  
99+
-  
Enthalpy of Fusion
11.72 kJ/mol  
36
-  
Enthalpy of Atomization
326.40 kJ/mol  
40
390.40 kJ/mol  
30
Standard Molar Entropy
9.50 J/mol.K  
99+
63.00 J/mol.K  
24
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