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Periodic Table Element Comparison: Compare Elements - Flerovium vs Promethium

Compare Flerovium and Promethium

Compare Flerovium and Promethium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Flerovium vs Promethium with most reliable information about their properties, attributes, facts, uses etc. You can compare Fl vs Pm on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Flerovium
114
Fl
289
Solid
N/A
post-transition metal
14
carbon family 
7
p
[Rn] 5f14 6d10 7s2 7p2
N/A
N/A
2, 8, 18, 32, 32, 18, 4
CAS54085-16-4
Neighborhood Elements of Flerovium
Promethium
61
Pm
145
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f5 6s2
1.1×103 °C
3×103 °C
2, 8, 18, 23, 8, 2
CAS7440-12-2
Neighborhood Elements of Promethium

History

History
The element Flerovium was discovered by Joint Institute for Nuclear Research in year 1998 in Russia. Flerovium derived its name from from Flerov Laboratory of Nuclear Reactions, part of JINR where the element was synthesized; itself named for Georgy Flyorov, physicist
The element Promethium was discovered by Chien Shiung Wu in year 1945 in United States. Promethium derived its name derived its name from from Prometheus of Greek mythology who stole fire from the Gods and gave it to humans

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
N/A
None
None
None
None
None

Crystal Structure and Atomic Structure

N/A
N/A cm3
N/A
N/A
N/A
flerovium Spectrum
N/A
N/A
N/A
N/A

N/A

flerovium Crystal Structure
205 pm
19.961453744493 cm3
N/A
N/A
8×103
promethium Spectrum
N/A
N/A
N/A
N/A

Simple Hexagonal

promethium Crystal Structure

Atomic and Orbital Properties

Atomic Number
Number of Electrons (with no charge)
Number of Protons
Mass Number
Number of Neutrons
Shell structure (Electrons per energy level)
Electron Configuration
Valence Electrons
Oxidation State
Atomic Term Symbol (Quantum Numbers)
Shell structure
114
114
114
289
175
2, 8, 18, 32, 32, 18, 4
[Rn] 5f14 6d10 7s2 7p2
7s2 7p2
 
3P0
flerovium Shells
61
61
61
145
84
2, 8, 18, 23, 8, 2
[Xe] 4f5 6s2
4f5 6s2
 2;3
6H5/2
promethium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

N/A
N/A
N/A
N/A
3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol

Physical Properties

N/A
N/A

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

N/A
N/A

 

N/A
N/A
N/A
N/A
N/A

 

N/A

 

N/A
7.264 g/cm3
19.961453744493

 

46 GPa
18 GPa
33 GPa
0.28


 

N/A
N/A
N/A

 

1.3×106 S/m
7.5×10-7 m Ω
N/A

 

15 W/(m K)
0.000011 K-1

 

N/A
N/A
N/A
N/A
N/A

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

N/A
N/A
N/A
N/A

 

N/A
N/A
N/A
1.1×103 °C
3×103 °C
N/A
N/A

 

7.7 kJ/mol
290 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS54085-16-4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-12-2
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A