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Sodium vs Fermium


Fermium vs Sodium


Periodic Table

Symbol
Na   
Fm   

Group Number
1   
17
Not Available   

Period Number
3   
7   

Block
s block   
f block   

Element Family
Alkali   
Actinide   

CAS Number
7440235   
99+
7440724   
19

Space Group Name
Im_ 3m   
Not Available   

Space Group Number
229.00   
1
Not Available   

Facts

Interesting Facts
  • At room temperature Sodium metal is very soft as it can be chopped down into pieces with butter knife.
  • The most common compound of Sodium is NaCl (Salt).
  
  • Fermium metal is highly radioactive in nature.
  • Fermium is synthetically produced metal.
  

Sources
By Electrolysis Process, Mining   
Bombarding Pu-239 with Neutrons   

History
  
  

Who Discovered
Humphry Davy   
Lawrence Berkeley National Laboratory   

Discovery
In 1807   
In 1952   

Abundance
  
  

Abundance In Universe
2 * 10-3 %   
6
Not Available   

Abundance In Sun
~0.004 %   
6
~-9999 %   

Abundance In Meteorites
0.55 %   
6
Not Available   

Abundance In Earth's Crust
2.30 %   
5
Not Available   

Abundance In Oceans
1.10 %   
1
Not Available   

Abundance In Humans
0.14 %   
3
Not Available   

Uses

Uses & Benefits
  • In some nuclear reactors sodium is used as a heat exchanger.
  • Compound of Sodium metals called Salt (Sodium chloride) is used in Food.
  
  • Currently known uses of Fermium metal are limited to research purpose only.
  

Industrial Uses
Electrical Industry, Electronic Industry   
NA   

Medical Uses
Pharmaceutical Industry   
NA   

Other Uses
Alloys   
NA   

Biological Properties
  
  

Toxicity
Toxic   
Unknown   

Present in Human Body
Yes   
No   

In Blood
1,970.00 Blood/mg dm-3   
1
0.00 Blood/mg dm-3   
37

In Bone
10,000.00 p.p.m.   
2
0.00 p.p.m.   
36

Physical Properties

Melting Point
97.72 °C   
99+
1,527.00 °C   
26

Boiling Point
883.00 °C   
99+
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Unknown   

Luster
Metallic   
Not Defined   

Hardness
  
  

Mohs Hardness
0.50   
22
Not Available   

Brinell Hardness
0.69 MPa   
99+
Not Available   

Speed of Sound
3,200.00 m/s   
24
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
Na   
Fm   

Isotopes
  
  

Known Isotopes
17   
22
18   
21

Electronegativity
  
  

Pauling Electronegativity
0.93   
99+
1.30   
32

Sanderson Electronegativity
0.56   
30
Not Available   

Allred Rochow Electronegativity
1.01   
35
1.20   
27

Mulliken-Jaffe Electronegativity
0.91   
21
Not Available   

Allen Electronegativity
0.87   
99+
Not Available   

Electropositivity
  
  

Pauling Electropositivity
3.07   
6
2.70   
22

Ionization Energies
  
  

1st Energy Level
495.80 kJ/mol   
99+
627.00 kJ/mol   
99+

2nd Energy Level
4,562.00 kJ/mol   
4
1,225.00 kJ/mol   
99+

3rd Energy Level
6,910.30 kJ/mol   
6
2,363.00 kJ/mol   
99+

4th Energy Level
9,543.00 kJ/mol   
5
3,792.00 kJ/mol   
99+

5th Energy Level
13,354.00 kJ/mol   
4
Not Available   

6th Energy Level
16,613.00 kJ/mol   
4
Not Available   

7th Energy level
20,117.00 kJ/mol   
4
Not Available   

8th Energy Level
25,496.00 kJ/mol   
4
Not Available   

9th Energy Level
28,932.00 kJ/mol   
4
Not Available   

10th Energy Level
141,362.00 kJ/mol   
2
Not Available   

11th Energy Level
159,076.00 kJ/mol   
2
Not Available   

Electrochemical Equivalent
0.86 g/amp-hr   
99+
3.20 g/amp-hr   
13

Electron Work Function
2.75 eV   
40
Not Available   

Other Chemical Properties
Chemical Stability, Corrosion, Flammability, Ionization, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
11   
99+
100   
18

Electron Configuration
[Ne] 3s1   
[Rn] 5f12 7s2   

Crystal Structure
Body Centered Cubic (BCC)   
Not Known   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
Unknown-Crystal-Structure-of-Fermium.jpg#100   

Atom
  
  

Number of Protons
11   
99+
100   
18

Number of Neutrons
12   
99+
157   
7

Number of Electrons
11   
99+
100   
18

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
Not Available   

Covalent Radius
166.00 pm   
27
Not Available   

Van der Waals Radius
227.00 pm   
21
245.00 pm   
9

Atomic Weight
22.99 amu   
99+
257.00 amu   
15

Atomic Volume
23.70 cm3/mol   
10
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Beryllium
  

Next Element
Magnesium
  

Valence Electron Potential
14.10 (-eV)   
99+
Not Available   

Lattice Constant
429.06 pm   
19
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

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

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

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
3.30 GPa   
99+
Not Available   

Bulk Modulus
6.30 GPa   
99+
Not Available   

Young's Modulus
10.00 GPa   
99+
Not Available   

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
0.97   
99+
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
47.70 nΩ·m   
99+
Not Available   

Electrical Conductivity
0.21 106/cm Ω   
9
Not Available   

Electron Affinity
52.80 kJ/mol   
19
Not Available   

Thermal Properties

Specific Heat
1.23 J/(kg K)   
3
Not Available   

Molar Heat Capacity
28.23 J/mol·K   
10
Not Available   

Thermal Conductivity
142.00 W/m·K   
11
Not Available   

Critical Temperature
2,573.00 K   
2
Not Available   

Thermal Expansion
71.00 µm/(m·K)   
4
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
89.04 kJ/mol   
99+
Not Available   

Enthalpy of Fusion
2.59 kJ/mol   
99+
Not Available   

Enthalpy of Atomization
108.40 kJ/mol   
99+
Not Available   

Standard Molar Entropy
51.30 J/mol.K   
28
Not Available   

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