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Periodic Table Element Comparison: Compare Elements - Promethium vs Lutetium

Compare Promethium and Lutetium

Compare Promethium and Lutetium 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 Lutetium with most reliable information about their properties, attributes, facts, uses etc. You can compare Pm vs Lu 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
Lutetium
71
Lu
174.967
Solid
Silver
lanthanide
3
scandium family 
6
d
[Xe] 4f14 5d1 6s2
1663 °C
3402 °C
2, 8, 18, 32, 9, 2
CAS7439-94-3
Neighborhood Elements of Lutetium

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 Lutetium was discovered by Georges Urbain in year 1907 in France and Germany. Lutetium derived its name derived its name from from Lutetia, the Latin name for Paris

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
1×10-8%
1×10-7%
2.9×10-6%
5.6e-07
1.5×10-11%
N/A

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
217 pm
17.779392338177 cm3
160 pm
N/A
84
lutetium Spectrum
350.31, 350.31, 555.09 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

lutetium 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
71
71
71
174.967
103.967
2, 8, 18, 32, 9, 2
[Xe] 4f14 5d1 6s2
5d1 6s2
 2;3
2D3/2
lutetium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
175Lu.

Chemical Properties: Ionization Energies and electron affinity

3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol
3
1.27
50 kJ/mol
523.5, 1340, 2022.3, 4370, 6445 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
9.841 g/cm3
17.779392338177

 

69 GPa
27 GPa
48 GPa
0.26


 

N/A
1160 MPa
893 MPa

 

1.8×106 S/m
5.6×10-7 m Ω
0.1

 

16 W/(m K)
9.9×10-6 K-1

 

Paramagnetic
N/A
1.2×10-9
2.1×10-10
1.18e-05

 

N/A

 

N/A

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
1663 °C
3402 °C
N/A
0.1

 

22 kJ/mol
415 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
CAS7439-94-3
N/A
4.1
3089
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A