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Periodic Table Element Comparison: Compare Elements - Helium vs Lutetium

Compare Helium and Lutetium

Compare Helium and Lutetium 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 Lutetium with most reliable information about their properties, attributes, facts, uses etc. You can compare He vs Lu 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
Lutetium
71
Lu
174.967
Solid
Silver
lanthanide
3
scandium family 
6
d
[Xe] 4f14 5d1 6s2
1663 °C
3402 °C
2, 8, 18, 32, 9, 2
CAS7439-94-3
Neighborhood Elements of Lutetium

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 Lutetium was discovered by Georges Urbain in year 1907 in France and Germany. Lutetium derived its name derived its name from from Lutetia, the Latin name for Paris

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
1×10-8%
1×10-7%
2.9×10-6%
5.6e-07
1.5×10-11%
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
217 pm
17.779392338177 cm3
160 pm
N/A
84
lutetium Spectrum
350.31, 350.31, 555.09 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

lutetium 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
71
71
71
174.967
103.967
2, 8, 18, 32, 9, 2
[Xe] 4f14 5d1 6s2
5d1 6s2
 2;3
2D3/2
lutetium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
3He, 4He.
Naturally occurring stable isotopes:
175Lu.

Chemical Properties: Ionization Energies and electron affinity

0
N/A
0 kJ/mol
2372.3, 5250.5 kJ/mol
3
1.27
50 kJ/mol
523.5, 1340, 2022.3, 4370, 6445 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
9.841 g/cm3
17.779392338177

 

69 GPa
27 GPa
48 GPa
0.26


 

N/A
1160 MPa
893 MPa

 

1.8×106 S/m
5.6×10-7 m Ω
0.1

 

16 W/(m K)
9.9×10-6 K-1

 

Paramagnetic
N/A
1.2×10-9
2.1×10-10
1.18e-05

 

N/A

 

N/A

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
1663 °C
3402 °C
N/A
0.1

 

22 kJ/mol
415 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
CAS7439-94-3
N/A
4.1
3089
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A