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Flerovium Meitnerium Comparison


Meitnerium Flerovium comparison


Periodic Table

Symbol
Fl  
Mt  

Group Number
14  
4
9  
9

Period Number
7  
7  

Block
p block  
d block  

Element Family
Post-​Transition  
Probably Transition  

CAS Number
54085164  
5
54038016  
10

Space Group Name
-  
-  

Space Group Number
198.00  
6
166.00  
9

Facts

Interesting Facts
Flerovium is named after the Flerov Laboratory of Nuclear Reactions.  
Meitnerium is named after Lise Meitner, an Austrian physicist.  

Sources
-  
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  

History
  
  

Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
Gesellschaft für Schwerionenforschung  

Discovery
In 1999  
In 1982  

Abundance
  
  

Abundance In Universe
0.00 %  
40
0.00 %  
40

Abundance In Sun
-  
-  

Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+

Abundance In Earth's Crust
-  
-  

Abundance In Oceans
-  
-  

Abundance In Humans
-  
-  

Uses

Uses & Benefits
  • Currently known uses of Flerovium metal are limited to research purpose only.
  
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  

Industrial Uses
-  
-  

Medical Uses
-  
-  

Other Uses
Alloys, Research Purposes  
-  

Biological Properties
  
  

Toxicity
-  
-  

Present in Human Body
No  
No  

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

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

Physical

Melting Point
67.00 °C  
99+
-  

Boiling Point
147.00 °C  
99+
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
-  
-  

Luster
Unknown Luster  
Unknown Luster  

Hardness
  
  

Mohs Hardness
4.00  
11
-  

Brinell Hardness
350.00 MPa  
36
400.00 MPa  
34

Vickers Hardness
450.00 MPa  
38
350.00 MPa  
99+

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

Optical Properties
  
  

Refractive Index
1.30  
99+
1.30  
99+

Reflectivity
68.00 %  
15
68.00 %  
15

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Fl  
Mt  

Isotopes
  
  

Known Isotopes
1  
34
4  
33

Electronegativity
  
  

Pauling Electronegativity
2.60  
1
1.30  
33

Sanderson Electronegativity
1.30  
25
1.90  
13

Allred Rochow Electronegativity
1.30  
25
1.30  
25

Mulliken-Jaffe Electronegativity
1.30  
33
1.30  
33

Allen Electronegativity
1.30  
40
1.30  
40

Electropositivity
  
  

Pauling Electropositivity
2.00  
99+
2.00  
99+

Ionization Energies
  
  

1st Energy Level
823.90 kJ/mol  
13
800.80 kJ/mol  
15

2nd Energy Level
1,601.60 kJ/mol  
35
1,823.60 kJ/mol  
18

3rd Energy Level
3,367.30 kJ/mol  
18
2,904.20 kJ/mol  
31

4th Energy Level
4,399.70 kJ/mol  
37
3,859.40 kJ/mol  
99+

5th Energy Level
5,847.00 kJ/mol  
99+
4,920.80 kJ/mol  
99+

6th Energy Level
11,400.00 kJ/mol  
9
8,000.00 kJ/mol  
34

7th Energy level
5,400.00 kJ/mol  
99+
8,000.00 kJ/mol  
28

8th Energy Level
6,700.00 kJ/mol  
39
8,000.00 kJ/mol  
28

9th Energy Level
5,840.00 kJ/mol  
99+
6,700.00 kJ/mol  
36

10th Energy Level
6,000.00 kJ/mol  
99+
5,800.00 kJ/mol  
99+

11th Energy Level
6,000.00 kJ/mol  
99+
6,300.00 kJ/mol  
99+

12th Energy Level
36,400.00 kJ/mol  
24
0.00 kJ/mol  
99+

13th Energy Level
5,400.00 kJ/mol  
99+
8,000.00 kJ/mol  
20

14th Energy Level
1,145.00 kJ/mol  
99+
1,156.00 kJ/mol  
99+

15th Energy Level
67,000.00 kJ/mol  
33
80,000.00 kJ/mol  
17

16th Energy Level
36,400.00 kJ/mol  
99+
58,700.00 kJ/mol  
39

17th Energy Level
1,144.00 kJ/mol  
17
1,110.00 kJ/mol  
20

18th Energy Level
3,400.00 kJ/mol  
99+
8,000.00 kJ/mol  
23

19th Energy Level
1,127.50 kJ/mol  
16
1,110.00 kJ/mol  
17

20th Energy Level
800.00 kJ/mol  
24
850.00 kJ/mol  
18

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

22nd Energy Level
340.00 kJ/mol  
99+
380.00 kJ/mol  
99+

23rd Energy Level
1,120.00 kJ/mol  
34
8,000.00 kJ/mol  
9

24th Energy Level
540.10 kJ/mol  
99+
565.60 kJ/mol  
99+

25th Energy Level
0.00 kJ/mol  
99+
800.00 kJ/mol  
13

26th Energy Level
540.10 kJ/mol  
99+
800.00 kJ/mol  
13

27th Energy Level
540.00 kJ/mol  
99+
800.00 kJ/mol  
12

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

29th Energy Level
800.10 kJ/mol  
17
800.00 kJ/mol  
18

30th Energy Level
0.00 kJ/mol  
99+
800.00 kJ/mol  
13

Electrochemical Equivalent
3.00 g/amp-hr  
21
3.00 g/amp-hr  
21

Electron Work Function
4.90 eV  
12
4.90 eV  
12

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

Atomic

Atomic Number
114  
4
109  
9

Electron Configuration
[Rn] 5f14 6d10 7s2 7p2  
[Rn] 5f14 6d7 7s2  

Crystal Structure
Not Known  
Face Centered Cubic (FCC)  

Crystal Lattice
Unknown-Crystal-Structure-of-Flerovium.jpg#100  
FCC-Crystal-Structure-of-Meitnerium.jpg#100  

Atom
  
  

Number of Protons
114  
4
109  
9

Number of Neutrons
184  
2
157  
8

Number of Electrons
114  
4
109  
9

Radius of an Atom
  
  

Atomic Radius
180.00 pm  
16
122.00 pm  
99+

Covalent Radius
171.00 pm  
26
129.00 pm  
99+

Van der Waals Radius
0.00 pm  
99+
260.00 pm  
9

Atomic Weight
289.00 amu  
3
278.00 amu  
7

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

Adjacent Atomic Numbers
  
  

Previous Element
Nihonium
  
Hassium
  

Next Element
Moscovium
  

Valence Electron Potential
0.00 (-eV)  
99+
31.20 (-eV)  
99+

Lattice Constant
-  
0.00 pm  
99+

Lattice Angles
-  
-  

Lattice C/A Ratio
1.60  
22
1.59  
27

Mechanical

Density
  
  

Density At Room Temperature
14.00 g/cm3  
24
37.40 g/cm3  
2

Density When Liquid (at m.p.)
14.00 g/cm3  
24
37.40 g/cm3  
2

Tensile Strength
0.10 MPa  
99+
80.00 MPa  
29

Viscosity
0.00  
25
0.00  
25

Vapor Pressure
  
  

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

Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
35.00 GPa  
21
35.00 GPa  
21

Bulk Modulus
15.00 GPa  
99+
0.00 GPa  
99+

Young's Modulus
0.00 GPa  
99+
13.50 GPa  
99+

Poisson Ratio
0.30  
14
0.25  
24

Other Mechanical Properties
-  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
14.00  
25
37.40  
4

Magnetic Ordering
-  
Paramagnetic  

Permeability
0.00 H/m  
15
0.00 H/m  
12

Susceptibility
0.00  
24
0.00  
24

Electrical Properties
  
  

Electrical Property
-  
-  

Resistivity
5.40 nΩ·m  
99+
0.35 nΩ·m  
99+

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

Electron Affinity
-  
50.00 kJ/mol  
26

Thermal

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

Molar Heat Capacity
27.00 J/mol·K  
29
27.00 J/mol·K  
29

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

Critical Temperature
340.00 K  
99+
1,323.00 K  
99+

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

Enthalpy
  
  

Enthalpy of Vaporization
337.40 kJ/mol  
38
110.00 kJ/mol  
99+

Enthalpy of Fusion
14.50 kJ/mol  
26
-  

Enthalpy of Atomization
-  
350.20 kJ/mol  
37

Standard Molar Entropy
57.00 J/mol.K  
30
63.80 J/mol.K  
22

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