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Periodic Table Element Comparison: Compare Elements - Promethium vs Thorium

Compare Promethium and Thorium

Compare Promethium and Thorium 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 Promethium vs Thorium with most reliable information about their properties, attributes, facts, uses etc. You can compare Pm vs Th on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

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
Thorium
90
Th
232.0381
Solid
Silver
actinide
N/A
 
7
f
[Rn] 6d2 7s2
1750 °C
4820 °C
2, 8, 18, 32, 18, 10, 2
CAS7440-29-1
Neighborhood Elements of Thorium

History

History
The element Promethium was discovered by Chien Shiung Wu in year 1945 in United States. Promethium derived its name from from Prometheus of Greek mythology who stole fire from the Gods and gave it to humans
The element Thorium was discovered by Jöns Jakob Berzelius in year 1829 in Sweden. Thorium derived its name derived its name from from Thor, the Scandinavian god of thunder

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
4×10-8%
3×10-8%
3.9×10-6%
6e-06
4×10-12%
None

Crystal Structure and Atomic 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
180 pm
19.791717843739 cm3
N/A
N/A
7.4
thorium Spectrum
508.42, 508.42, 508.42 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

thorium 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
61
61
61
145
84
2, 8, 18, 23, 8, 2
[Xe] 4f5 6s2
4f5 6s2
 2;3
6H5/2
promethium Shells
90
90
90
232.0381
142.0381
2, 8, 18, 32, 18, 10, 2
[Rn] 6d2 7s2
6d2 7s2
 1;2;3;4
3F2
thorium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
232Th.

Chemical Properties: Ionization Energies and electron affinity

3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol
4
1.3
N/A
587, 1110, 1930, 2780 kJ/mol

Physical Properties

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
11.724 g/cm3
19.791717843739

 

79 GPa
31 GPa
54 GPa
0.27


 

3 MPa
350 MPa
400 MPa

 

6.7×106 S/m
1.5×10-7 m Ω
1.38

 

54 W/(m K)
0.000011 K-1

 

Paramagnetic
N/A
7.2×10-9
1.7×10-9
8.4e-05

 

N/A

 

2490 m/s

Thermal Properties - Enthalpies and thermodynamics

1.1×103 °C
3×103 °C
N/A
N/A

 

7.7 kJ/mol
290 kJ/mol
N/A
1750 °C
4820 °C
N/A
1.38

 

16 kJ/mol
530 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

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

 

N/A
N/A
CAS7440-29-1
RTECSXO6400000
7
2975
EU231-139-7
N/A
N/A
N/A
N/A

 

130 °C
N/A