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Periodic Table Element Comparison: Compare Elements - Helium vs Sodium

Compare Helium and Sodium

Compare Helium and Sodium 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 Sodium with most reliable information about their properties, attributes, facts, uses etc. You can compare He vs Na 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
Sodium
11
Na
22.98977
Solid
Silver
alkali metal
1
lithium family 
3
s
[Ne] 3s1
97.72 °C
883 °C
2, 8, 1
CAS7440-23-5
Neighborhood Elements of Sodium

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 Sodium was discovered by Humphry Davy in year 1807 in United Kingdom. Sodium derived its name derived its name from from the English word soda (natrium in Latin)

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
2e-05
4e-05
0.0055
0.023
0.011
0.0014

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
190 pm
23.749762396694 cm3
154 pm
227 pm
0.53
sodium Spectrum
429.06, 429.06, 429.06 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

sodium 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
11
11
11
22.98977
11.98977
2, 8, 1
[Ne] 3s1
3s1
-1  1
2S1/2
sodium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
3He, 4He.
Naturally occurring stable isotopes:
23Na.

Chemical Properties: Ionization Energies and electron affinity

0
N/A
0 kJ/mol
2372.3, 5250.5 kJ/mol
1
0.93
52.8 kJ/mol
495.8, 4562, 6910.3, 9543, 13354, 16613, 20117, 25496, 28932, 141362 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
0.968 g/cm3
23.749762396694

 

10 GPa
3.3 GPa
6.3 GPa
N/A


 

0.5 MPa
N/A
0.69 MPa

 

2.1×107 S/m
4.7×10-8 m Ω
N/A

 

140 W/(m K)
0.000071 K-1

 

Paramagnetic
N/A
8.8×10-9
2×10-10
8.5×10-6

 

N/A

 

3.2×103 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
97.72 °C
883 °C
2573 K
N/A

 

2.6 kJ/mol
97.7 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
CAS7440-23-5
RTECSVY0686000
4.3
1428
N/A
3
Water Reactive
3
2

 

115 °C
4 °C