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Periodic Table Element Comparison: Compare Elements - Neodymium vs Polonium

Compare Neodymium and Polonium

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

Facts

Neodymium
60
Nd
144.24
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f4 6s2
1021 °C
3.1×103 °C
2, 8, 18, 22, 8, 2
CAS7440-00-8
Neighborhood Elements of Neodymium
Polonium
84
Po
209
Solid
Silver
metalloid
16
oxygen family 
6
p
[Xe] 4f14 5d10 6s2 6p4
254 °C
962 °C
2, 8, 18, 32, 18, 6
CAS7440-08-6
Neighborhood Elements of Polonium

History

History
The element Neodymium was discovered by Carl Auer von Welsbach in year 1885 in Austria. Neodymium derived its name from from the Greek neos didymos meaning 'new twin'
The element Polonium was discovered by Pierre Curie in year 1898 in France. Polonium derived its name derived its name from from Named after the home country of Marie Curie(Poland), who is also the discoverer of Radium

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
1×10-6%
3×10-7%
5e-07
3.3e-05
2.8×10-10%
N/A
N/A
N/A
N/A
N/A
2×10-18%
None

Crystal Structure and Atomic Structure

206 pm
20.576319543509 cm3
N/A
N/A
49
neodymium Spectrum
365.8, 365.8, 1179.9 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

neodymium Crystal Structure
135 pm
22.727272727273 cm3
N/A
N/A
0.5
polonium Spectrum
335.9, 335.9, 335.9 pm
π/2, π/2, π/2
Pm-3m
221

Simple Cubic

polonium 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
60
60
60
144.24
84.24
2, 8, 18, 22, 8, 2
[Xe] 4f4 6s2
4f4 6s2
 2;3;4
5I4
neodymium Shells
84
84
84
209
125
2, 8, 18, 32, 18, 6
[Xe] 4f14 5d10 6s2 6p4
6s2 6p4
-2  2;4;5;6
3P2
polonium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
142Nd, 143Nd, 145Nd, 146Nd, 148Nd.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

3
1.14
50 kJ/mol
533.1, 1040, 2130, 3.9×103 kJ/mol
6
2
183.3 kJ/mol
812.1 kJ/mol

Physical Properties

7.01 g/cm3
20.576319543509

 

41 GPa
16 GPa
32 GPa
0.28


 

N/A
343 MPa
265 MPa

 

1.6×106 S/m
6.4×10-7 m Ω
N/A

 

17 W/(m K)
9.6×10-6 K-1

 

Paramagnetic
N/A
4.8×10-7
6.9235×10-8
0.0033648

 

N/A

 

2330 m/s
9.196 g/cm3
22.727272727273

 

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


 

N/A
N/A
N/A

 

2.3×106 S/m
4.3×10-7 m Ω
N/A

 

N/A
N/A

 

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

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

1021 °C
3.1×103 °C
N/A
N/A

 

7.1 kJ/mol
285 kJ/mol
N/A
254 °C
962 °C
N/A
N/A

 

13 kJ/mol
100 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-00-8
RTECSQO8575000
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-08-6
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A