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Periodic Table Element Comparison: Compare Elements - Promethium vs Bromine

Compare Promethium and Bromine

Compare Promethium and Bromine 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 Bromine with most reliable information about their properties, attributes, facts, uses etc. You can compare Pm vs Br 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
Bromine
35
Br
79.904
Liquid
Red
halogens
17
fluorine family 
4
p
[Ar] 3d10 4s2 4p5
-7.3 °C
59 °C
2, 8, 18, 7
CAS7726-95-6
Neighborhood Elements of Bromine

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 Bromine was discovered by Antoine Jérôme Balard in year 1826 in France. Bromine derived its name derived its name from from the Greek bromos, meaning 'stench'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
7×10-7%
N/A
1.2e-06
3e-06
6.7e-05
2.9e-06

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
94 pm
25.610256410256 cm3
114 pm
185 pm
6.8
bromine Spectrum
672.65, 464.51, 870.23 pm
π/2, π/2, π/2
Cmca
64

Base Centered Orthorhombic

bromine 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
35
35
35
79.904
44.904
2, 8, 18, 7
[Ar] 3d10 4s2 4p5
4s2 4p5
-1  1;3;4;5;7
2P3/2
bromine Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
79Br, 81Br.

Chemical Properties: Ionization Energies and electron affinity

3
N/A
50 kJ/mol
540, 1050, 2150, 3970 kJ/mol
5
2.96
324.6 kJ/mol
1139.9, 2103, 3470, 4560, 5760, 8550, 9940, 1.86×104 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
3.12 g/cm3
25.610256410256

 

N/A
N/A
1.9 GPa
N/A


 

N/A
N/A
N/A

 

1×10-10 S/m
1×1010 m Ω
N/A

 

0.12 W/(m K)
N/A

 

Diamagnetic
N/A
-4.9×10-9
-7.83×10-10
-1.53e-05

 

1.001132

 

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
-7.3 °C
59 °C
588 K
N/A

 

5.8 kJ/mol
14.8 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
CAS7726-95-6
RTECSEF9100000
8
1744
N/A
0
Oxidizing Agent
3
0

 

N/A
-18 °C