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Periodic Table Element Comparison: Compare Elements - Promethium vs Dysprosium

Compare Promethium and Dysprosium

Compare Promethium and Dysprosium 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 Dysprosium with most reliable information about their properties, attributes, facts, uses etc. You can compare Pm vs Dy 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
Dysprosium
66
Dy
162.5
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f10 6s2
1412 °C
2567 °C
2, 8, 18, 28, 8, 2
CAS7429-91-6
Neighborhood Elements of Dysprosium

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 Dysprosium was discovered by Lecoq de Boisbaudran in year 1886 in France. Dysprosium derived its name derived its name from from the Greek dysprositos, meaning 'hard to get'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
2×10-7%
2×10-7%
2.7e-07
6.2e-06
9.1×10-11%
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
228 pm
19.003625306982 cm3
N/A
N/A
1010
dysprosium Spectrum
359.3, 359.3, 565.37 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

dysprosium 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
66
66
66
162.5
96.5
2, 8, 18, 28, 8, 2
[Xe] 4f10 6s2
4f10 6s2
 2;3;4
5I8
dysprosium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164Dy.

Chemical Properties: Ionization Energies and electron affinity

3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol
3
1.22
50 kJ/mol
573, 1130, 2.2×103, 3990 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
8.551 g/cm3
19.003625306982

 

61 GPa
25 GPa
41 GPa
0.25


 

N/A
540 MPa
500 MPa

 

1.1×106 S/m
9.1×10-7 m Ω
N/A

 

11 W/(m K)
9.9×10-6 K-1

 

Paramagnetic
87 K
5.45×10-6
8.85625×10-7
0.046603

 

N/A

 

2710 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
1412 °C
2567 °C
N/A
N/A

 

11.1 kJ/mol
280 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
CAS7429-91-6
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A