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Periodic Table Element Comparison: Compare Elements - Argon vs Protactinium

Compare Argon and Protactinium

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

Facts

Argon
18
Ar
39.948
Gas
Colorless
noble gas
18
helium family or neon family 
3
p
[Ne] 3s2 3p6
-189.3 °C
-185.8 °C
2, 8, 8
CAS7440-37-1
Neighborhood Elements of Argon
Protactinium
91
Pa
231.03588
Solid
Silver
actinide
N/A
 
7
f
[Rn] 5f2 6d1 7s2
1572 °C
4000 °C
2, 8, 18, 32, 20, 9, 2
CAS7440-13-3
Neighborhood Elements of Protactinium

History

History
The element Argon was discovered by Lord Rayleigh in year 1894 in United Kingdom. Argon derived its name from from the Greek word argos, meaning 'idle'
The element Protactinium was discovered by William Crookes in year 1913 in Germany and United Kingdom. Protactinium derived its name derived its name from from the Greek protos, 'first', and actinium, which is produced through the radioactive decay of protactinium

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
0.0002
7e-05
N/A
1.5e-06
4.5e-07
N/A
N/A
N/A
N/A
9.9×10-13%
2×10-23%
None

Crystal Structure and Atomic Structure

71 pm
22.392376681614 cm3
97 pm
188 pm
0.65
argon Spectrum
525.6, 525.6, 525.6 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

argon Crystal Structure
180 pm
15.03161223162 cm3
N/A
N/A
500
protactinium Spectrum
392.5, 392.5, 323.8 pm
π/2, π/2, π/2
I4/mmm
139

Centered Tetragonal

protactinium 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
18
18
18
39.948
21.948
2, 8, 8
[Ne] 3s2 3p6
3s2 3p6
 
1S0
argon Shells
91
91
91
231.03588
140.03588
2, 8, 18, 32, 20, 9, 2
[Rn] 5f2 6d1 7s2
5f2 6d1 7s2
 3;4;5
4K11/2
protactinium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
36Ar, 38Ar, 40Ar.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

0
N/A
0 kJ/mol
1520.6, 2665.8, 3931, 5771, 7238, 8781, 11995, 13842, 40760, 46186 kJ/mol
5
1.5
N/A
568 kJ/mol

Physical Properties

1.784 g/l
22.392376681614

 

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


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

0.01772 W/(m K)
N/A

 

Diamagnetic
N/A
-6×10-9
-2.4×10-10
-1.07×10-8

 

1.000281

 

319 m/s
15.37 g/cm3
15.03161223162

 

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


 

N/A
N/A
N/A

 

5.6×106 S/m
1.8×10-7 m Ω
1.4

 

47 W/(m K)
N/A

 

Paramagnetic
N/A
3.25×10-8
7.509×10-9
0.0004995

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

-189.3 °C
-185.8 °C
150.87 K
N/A

 

1.18 kJ/mol
6.5 kJ/mol
N/A
1572 °C
4000 °C
N/A
1.4

 

15 kJ/mol
470 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-37-1
RTECSCF2300000
2.2
1951
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-13-3
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A