;

Periodic Table Element Comparison: Compare Elements - Helium vs Xenon

Compare Helium and Xenon

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

Facts

Helium
2
He
4.002602
Gas
Colorless
noble gas
18
helium family or neon family 
1
p
1s2
N/A
-268.93 °C
2
CAS7440-59-7
Neighborhood Elements of Helium
Xenon
54
Xe
131.293
Gas
Colorless
noble gas
18
helium family or neon family 
5
p
[Kr] 4d10 5s2 5p6
-111.8 °C
-108 °C
2, 8, 18, 18, 8
CAS7440-63-3
Neighborhood Elements of Xenon

History

History
The element Helium was discovered by Pierre Janssen in year 1895 in Sweden and United Kingdom. Helium derived its name from from the Greek word helios, meaning 'sun'
The element Xenon was discovered by William Ramsay in year 1898 in United Kingdom. Xenon derived its name derived its name from from the Greek xenos, meaning 'strange'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
0.23
0.23
N/A
5.5×10-7%
7.2×10-10%
N/A
1×10-6%
N/A
N/A
2×10-9%
5×10-10%
N/A

Crystal Structure and Atomic Structure

31 pm
22.423540616247 cm3
32 pm
140 pm
0.007
helium Spectrum
424.2, 424.2, 424.2 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

helium Crystal Structure
108 pm
22.253050847458 cm3
130 pm
216 pm
25
xenon Spectrum
620.23, 620.23, 620.23 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

xenon 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
2
2
2
4.002602
2.002602
2
1s2
1s2
 
1S0
helium Shells
54
54
54
131.293
77.293
2, 8, 18, 18, 8
[Kr] 4d10 5s2 5p6
5s2 5p6
 2;4;6;8
1S0
xenon Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
3He, 4He.
Naturally occurring stable isotopes:
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136Xe.

Chemical Properties: Ionization Energies and electron affinity

0
N/A
0 kJ/mol
2372.3, 5250.5 kJ/mol
6
2.6
0 kJ/mol
1170.4, 2046.4, 3099.4 kJ/mol

Physical Properties

0.1785 g/l
22.423540616247

 

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


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

0.1513 W/(m K)
N/A

 

Diamagnetic
N/A
-5.9×10-9
-2.36×10-11
-1.05×10-9

 

1.000035

 

970 m/s
5.9 g/l
22.253050847458

 

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


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

0.00565 W/(m K)
N/A

 

Diamagnetic
N/A
-4.3×10-9
-5.65×10-10
-2.54×10-8

 

1.000702

 

1090 m/s

Thermal Properties - Enthalpies and thermodynamics

N/A
-268.93 °C
5.19 K
N/A

 

0.02 kJ/mol
0.083 kJ/mol
N/A
-111.8 °C
-108 °C
289.77 K
N/A

 

2.3 kJ/mol
12.64 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-59-7
RTECSMH6520000
2.2
1963
N/A
0
N/A
1
0

 

N/A
N/A
CAS7440-63-3
RTECSZE1280000
2.2
2591
EU231-172-7
N/A
N/A
N/A
N/A

 

N/A
N/A