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Gadolinium vs Nobelium


Nobelium vs Gadolinium


Periodic Table

Symbol
Gd   
No   

Group Number
0   
18
Not Available   

Period Number
6   
7   

Block
f block   
f block   

Element Family
Lanthanide   
Actinide   

CAS Number
7440542   
33
10028145   
16

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

Facts

Interesting Facts
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
  

Sources
Found in Minerals, Mining   
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining   

History
  
  

Who Discovered
Jean Charles Galissard de Marignac   
Joint Institute for Nuclear Research   

Discovery
In 1880   
In 1966   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
Not Available   

Abundance In Sun
~0.0000002 %   
25
~-9999 %   

Abundance In Meteorites
0.00 %   
34
Not Available   

Abundance In Earth's Crust
0.00 %   
30
Not Available   

Abundance In Oceans
0.00 %   
38
Not Available   

Uses

Uses & Benefits
  • Its alloys are also used in making Magnets, electronic components and Data storage devices.
  • Compound of Gadolinium metal are used in magnetic resonance imaging (MRI).
  
  • Currently known uses of Nobelium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Research Purposes   

Biological Properties
  
  

Toxicity
Non Toxic   
Unknown   

Present in Human Body
No   
No   

In Blood
Not Available   
0.00 Blood/mg dm-3   
37

In Bone
Not Available   
0.00 p.p.m.   
36

Physical Properties

Melting Point
1,311.00 °C   
35
827.00 °C   
99+

Boiling Point
3,233.00 °C   
25
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Unknown   

Luster
Metallic   
Unknown Luster   

Hardness
  
  

Vickers Hardness
510.00 MPa   
22
Not Available   

Speed of Sound
2,680.00 m/s   
34
Not Available   

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
Gd   
No   

Isotopes
  
  

Known Isotopes
26   
13
13   
26

Electronegativity
  
  

Pauling Electronegativity
1.20   
39
1.30   
32

Allred Rochow Electronegativity
1.11   
29
1.20   
27

Electropositivity
  
  

Pauling Electropositivity
2.80   
15
2.70   
22

Ionization Energies
  
  

1st Energy Level
593.40 kJ/mol   
99+
642.00 kJ/mol   
99+

2nd Energy Level
1,170.00 kJ/mol   
99+
1,254.00 kJ/mol   
99+

3rd Energy Level
1,990.00 kJ/mol   
99+
2,643.00 kJ/mol   
99+

4th Energy Level
4,250.00 kJ/mol   
30
3,956.00 kJ/mol   
39

Electrochemical Equivalent
1.96 g/amp-hr   
32
4.83 g/amp-hr   
4

Electron Work Function
3.10 eV   
35
Not Available   

Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
64   
99+
102   
16

Electron Configuration
[Xe] 4f7 5d1 6s2   
[Rn] 5f14 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Not Known   

Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
Unknown-Crystal-Structure-of-Nobelium.jpg#100   

Atom
  
  

Number of Protons
64   
99+
102   
16

Number of Neutrons
93   
37
157   
7

Number of Electrons
64   
99+
102   
16

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
Not Available   

Covalent Radius
196.00 pm   
14
Not Available   

Van der Waals Radius
237.00 pm   
15
246.00 pm   
8

Atomic Weight
47.87 amu   
99+
259.00 amu   
13

Atomic Volume
19.90 cm3/mol   
20
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Europium
  

Next Element
Terbium
  
Lawrencium
  

Valence Electron Potential
46.10 (-eV)   
34
26.00 (-eV)   
99+

Lattice Constant
363.60 pm   
32
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
1.59   
9
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
7.90 g/cm3   
99+
Not Available   

Density When Liquid (at m.p.)
7.40 g/cm3   
31
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
30
Not Available   

Vapor Pressure at 2000 K
7.39 (Pa)   
9
Not Available   

Elasticity properties
  
  

Shear Modulus
21.80 GPa   
33
Not Available   

Bulk Modulus
37.90 GPa   
34
Not Available   

Young's Modulus
54.80 GPa   
35
Not Available   

Poisson Ratio
0.26   
23
Not Available   

Other Mechanical Properties
Ductile, Malleable   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.90   
40
Not Available   

Magnetic Ordering
Ferromagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
1.31 nΩ·m   
99+
Not Available   

Electrical Conductivity
0.01 106/cm Ω   
99+
Not Available   

Electron Affinity
50.00 kJ/mol   
21
Not Available   

Thermal Properties

Specific Heat
0.23 J/(kg K)   
27
Not Available   

Molar Heat Capacity
37.03 J/mol·K   
2
Not Available   

Thermal Conductivity
10.60 W/m·K   
99+
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
9.40 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
359.40 kJ/mol   
21
Not Available   

Enthalpy of Fusion
10.05 kJ/mol   
36
Not Available   

Enthalpy of Atomization
352.00 kJ/mol   
27
Not Available   

Standard Molar Entropy
68.10 J/mol.K   
16
Not Available   

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