Periodic Table Element Comparison: Compare Elements - Helium vs Carbon

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

Name	Helium	Carbon
Atomic Number	2	6
Atomic Symbol	He	C
Atomic Weight	4.002602	12.0107
Phase at STP	Gas	Solid
Color	Colorless	Black
Metallic Classification	Noble Gas	Other Nonmetal
Group in Periodic Table	group 18	group 14
Group Name	helium family or neon family	carbon family
Period in Periodic Table	period 1	period 2
Block in Periodic Table	p -block	p -block
Electronic Configuration	1s2	[He] 2s2 2p2
Electronic Shell Structure (Electrons per shell)	2	2, 4
Melting Point	0 K	3823 K
Boiling Point	4.22 K	4300 K
CAS Number	CAS7440-59-7	CAS7440-44-0
Neighborhood Elements	Neighborhood Elements of Helium	Neighborhood Elements of Carbon

Parameter	Helium	Carbon
History	The element Helium was discovered by P. Janssen and N. Lockyer in year 1868 in Sweden and United Kingdom. Helium derived its name from the Greek word helios, meaning 'sun'.	The element Carbon was discovered by Egyptians and Sumerians in year 3750 BCE. Carbon derived its name the Latin word carbo, meaning 'coal'.
Discovery	P. Janssen and N. Lockyer (1868)	Egyptians and Sumerians (3750 BCE)
Isolated	W. Ramsay,T. Cleve, and N. Langlet (1895)	()

Property	Helium	Carbon
Abundance in Universe	230000000 / 72000000	5000000 / 500000
Abundance in Sun	230000000 / 74000000	3000000 / 300000
Abundance in Meteorites	- / -	15000000 / 18000000
Abundance in Earth's Crust	5.5 / 30	1800000 / 3100000
Abundance in Oceans	0.0072 / 0.011	28000 / 14400
Abundance in Humans	- / -	230000000 / 120000000

Property	Helium	Carbon
Atomic Volume	22.4136 cm3/mol	5.29 cm3/mol
Atomic Radius	31 pm	67 pm
Covalent Radius	32 pm	77 pm
Van der Waals Radius	140 pm	170 pm
Atomic Spectrum - Spectral Lines
Emission Spectrum
Absorption Spectrum
Lattice Constant	424.2, 424.2, 424.2 pm	246.4, 246.4, 671.1 pm
Lattice Angle	π/2, π/2, π/2	π/2, π/2, 2 π/3
Space Group Name	Fm_ 3m	P63/mmc
Space Group Number	225	194
Crystal Structure	Face Centered Cubic	Simple Hexagonal

Property	Helium	Carbon
Atomic Number	2	6
Number of Electrons (with no charge)	2	6
Number of Protons	2	6
Mass Number	4.002602	12.0107
Number of Neutrons	2	6
Shell structure (Electrons per energy level)	2	2, 4
Electron Configuration	1s2	[He] 2s2 2p2
Valence Electrons	1s2	2s2 2p2
Oxidation State	-	-4, -3, -2, -1, 0, 1, 2, 3, 4
Atomic Term Symbol (Quantum Numbers)	1S0	3P0
Shell structure

Parameter	Helium	Carbon
Known Isotopes	3He, 4He, 5He, 6He, 7He, 8He, 9He, 10He	8C, 9C, 10C, 11C, 12C, 13C, 14C, 15C, 16C, 17C, 18C, 19C, 20C, 21C, 22C
Stable Isotopes	Naturally occurring stable isotopes: 3He, 4He	Naturally occurring stable isotopes: 12C, 13C
Neutron Cross Section	0.007	0.0035
Neutron Mass Absorption	0.00001	0.000015

Property	Helium	Carbon
Valence or Valency	0	4
Electronegativity	-	2.55 Pauling Scale
Electron Affinity	0 kJ/mol	153.9 kJ/mol
Ionization Energies	1st: 2372.3 kJ/mol 2nd: 5250.5 kJ/mol	1st: 1086.5 kJ/mol 2nd: 2352.6 kJ/mol 3rd: 4620.5 kJ/mol 4th: 6222.7 kJ/mol 5th: 37831 kJ/mol 6th: 47277 kJ/mol

Property	Helium	Carbon
Density	0.0001785 g/cm3	2.26 g/cm3
Molar Volume	22.4136 cm3/mol	5.29 cm3/mol
Elastic Properties
Young Modulus	-	-
Shear Modulus	-	-
Bulk Modulus	-	33 GPa
Poisson Ratio	-	-
Hardness - Tests to Measure of Hardness of Element
Mohs Hardness	-	0.5 MPa
Vickers Hardness	-	-
Brinell Hardness	-	-
Electrical Properties
Electrical Conductivity	-	100000 S/m
Resistivity	-	0.00001 m Ω
Superconducting Point	-	-
Heat and Conduction Properties
Thermal Conductivity	0.1513 W/(m K)	140 W/(m K)
Thermal Expansion	-	0.0000071 /K
Magnetic Properties
Magnetic Type	Diamagnetic	Diamagnetic
Curie Point	-	-
Mass Magnetic Susceptibility	-5.9e-9 m3/kg	-6.2e-9 m3/kg
Molar Magnetic Susceptibility	-2.36e-11 m3/mol	-7.45e-11 m3/mol
Volume Magnetic Susceptibility	-1.05e-9	-0.000014
Optical Properties
Refractive Index	1.000035	2.417
Acoustic Properties
Speed of Sound	970 m/s	18350 m/s

Parameter	Helium	Carbon
CAS Number	CAS7440-59-7	CAS7440-44-0
RTECS Number	RTECSMH6520000	{RTECSHL4158550, RTECSFF5250100, RTECSMD9659600, N/A}
DOT Hazard Class	2.2	4.2
DOT Numbers	1963	1361
EU Number	-	-
NFPA Fire Rating	0	1
NFPA Health Rating	1	0
NFPA Reactivity Rating	0	0
NFPA Hazards	-	-
AutoIgnition Point	-	-
Flashpoint	-	-

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Periodic Table Element Comparison: Compare Elements - Helium vs Carbon

Helium and Carbon Comparison

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Facts

History

Presence: Abundance in Nature and Around Us

Crystal Structure and Atomic Structure

Atomic Spectrum - Spectral Lines

Atomic and Orbital Properties

Isotopes and Nuclear Properties

Chemical Properties: Ionization Energies and electron affinity

Physical Properties

Elastic Properties

Hardness - Tests to Measure of Hardness of Element

Electrical Properties

Heat and Conduction Properties

Magnetic Properties

Optical Properties

Acoustic Properties

Thermal Properties - Enthalpies and thermodynamics

Enthalpies

Regulatory and Health - Health and Safety Parameters and Guidelines

Compare With Other Elements

Compare Helium with all Group 18 elements

Compare Helium with all Period 1 elements

Compare Helium with all Noble Gas elements

Compare Carbon with all Group 14 elements

Compare Carbon with all Period 2 elements

Compare Carbon with all Other Nonmetal elements