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Periodic Table Element Comparison: Compare Elements - Promethium vs Tellurium

Compare Promethium and Tellurium

Compare Promethium and Tellurium 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 Tellurium with most reliable information about their properties, attributes, facts, uses etc. You can compare Pm vs Te 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
Tellurium
52
Te
127.6
Solid
Silver
metalloid
16
oxygen family 
5
p
[Kr] 4d10 5s2 5p4
449.51 °C
988 °C
2, 8, 18, 18, 6
CAS13494-80-9
Neighborhood Elements of Tellurium

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 Tellurium was discovered by Franz-Joseph Müller von Reichenstein in year 1783 in Romania. Tellurium derived its name derived its name from from Latin tellus, meaning 'earth'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
9×10-7%
N/A
2.1e-06
9.9×10-8%
N/A
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
123 pm
20.448717948718 cm3
135 pm
206 pm
5.4
tellurium Spectrum
445.72, 445.72, 592.9 pm
π/2, π/2, 2 π/3
P3121
152

Simple Trigonal

tellurium 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
52
52
52
127.6
75.6
2, 8, 18, 18, 6
[Kr] 4d10 5s2 5p4
5s2 5p4
-2;-1  1;2;3;4;5;6
3P2
tellurium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
120Te, 122Te, 124Te, 125Te, 126Te.

Chemical Properties: Ionization Energies and electron affinity

3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol
6
2.1
190.2 kJ/mol
869.3, 1790, 2698, 3610, 5668, 6820, 1.32×104 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
6.24 g/cm3
20.448717948718

 

43 GPa
16 GPa
65 GPa
N/A


 

2.25 MPa
N/A
180 MPa

 

1×104 S/m
0.0001 m Ω
N/A

 

3 W/(m K)
N/A

 

Diamagnetic
N/A
-3.9×10-9
-4.98×10-10
-2.43e-05

 

1.000991

 

2610 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
449.51 °C
988 °C
N/A
N/A

 

17.5 kJ/mol
48 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
CAS13494-80-9
RTECSWY2625000
6.1
2811
N/A
0
N/A
2
0

 

340 °C
N/A