Periodic Table Element Comparison: Compare Elements - Helium vs Phosphorus

Compare Helium and Phosphorus

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

Name	Helium	Phosphorus
Atomic Number	2	15
Atomic Symbol	He	P
Atomic Weight	4.002602	30.973761
Phase at STP	Gas	Solid
Color	Colorless	Colorless
Metallic Classification	Noble Gas	Other Nonmetal
Group in Periodic Table	group 18	group 15
Group Name	helium family or neon family	nitrogen family
Period in Periodic Table	period 1	period 3
Block in Periodic Table	p -block	p -block
Electronic Configuration	1s2	[Ne] 3s2 3p3
Electronic Shell Structure (Electrons per shell)	2	2, 8, 5
Melting Point	0 K	317.3 K
Boiling Point	4.22 K	553.6 K
CAS Number	CAS7440-59-7	CAS7723-14-0
Neighborhood Elements	Neighborhood Elements of Helium	Neighborhood Elements of Phosphorus

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 Phosphorus was discovered by H. Brand in year 1669 in Germany. Phosphorus derived its name from the Greek word phoosphoros, 'carrying light'.
Discovery	P. Janssen and N. Lockyer (1868)	H. Brand (1669)
Isolated	W. Ramsay,T. Cleve, and N. Langlet (1895)	H. Brand (1669)

Abundance in Universe	230000000 / 72000000	7000 / 300
Abundance in Sun	230000000 / 74000000	7000 / 300
Abundance in Meteorites	- / -	1100000 / 700000
Abundance in Earth's Crust	5.5 / 30	1000000 / 700000
Abundance in Oceans	0.0072 / 0.011	70 / 14
Abundance in Humans	- / -	11000000 / 2200000

Atomic Volume	22.4136 cm3/mol	16.991 cm3/mol
Atomic Radius	31 pm	98 pm
Covalent Radius	32 pm	106 pm
Van der Waals Radius	140 pm	180 pm
Atomic Spectrum
Lattice Constant	424.2, 424.2, 424.2 pm	1145, 550.3, 1126.1 pm
Lattice Angle	π/2, π/2, π/2	1.25384, 1.57725, 1.24896
Space Group Name	Fm_ 3m	P-1
Space Group Number	225	2
Crystal Structure	Face Centered Cubic	Simple Triclinic

Atomic Number	2	15
Number of Electrons (with no charge)	2	15
Number of Protons	2	15
Mass Number	4.002602	30.973761
Number of Neutrons	2	16
Shell structure (Electrons per energy level)	2	2, 8, 5
Electron Configuration	1s2	[Ne] 3s2 3p3
Valence Electrons	1s2	3s2 3p3
Oxidation State	-	-3, 3, 5
Atomic Term Symbol (Quantum Numbers)	1S0	4S3/2
Shell structure

Known Isotopes	3He, 4He, 5He, 6He, 7He, 8He, 9He, 10He	24P, 25P, 26P, 27P, 28P, 29P, 30P, 31P, 32P, 33P, 34P, 35P, 36P, 37P, 38P, 39P, 40P, 41P, 42P, 43P, 44P, 45P, 46P
Stable Isotopes	Naturally occurring stable isotopes: 3He, 4He	Naturally occurring stable isotopes: 31P
Neutron Cross Section	0.007	0.18
Neutron Mass Absorption	0.00001	0.0002

Valence or Valency	0	5
Electronegativity	-	2.19 Pauling Scale
Electron Affinity	0 kJ/mol	72 kJ/mol
Ionization Energies	1st: 2372.3 kJ/mol 2nd: 5250.5 kJ/mol	1st: 1011.8 kJ/mol 2nd: 1907 kJ/mol 3rd: 2914.1 kJ/mol 4th: 4963.6 kJ/mol 5th: 6273.9 kJ/mol 6th: 21267 kJ/mol 7th: 25431 kJ/mol 8th: 29872 kJ/mol 9th: 35905 kJ/mol 10th: 40950 kJ/mol 11th: 46261 kJ/mol 12th: 54110 kJ/mol 13th: 59024 kJ/mol 14th: 271791 kJ/mol 15th: 296195 kJ/mol

Density	0.0001785 g/cm3	1.823 g/cm3
Molar Volume	22.4136 cm3/mol	16.991 cm3/mol
Elastic Properties
Young Modulus	-	-
Shear Modulus	-	-
Bulk Modulus	-	11 GPa
Poisson Ratio	-	-
Hardness - Tests to Measure of Hardness of Element
Mohs Hardness	-	-
Vickers Hardness	-	-
Brinell Hardness	-	-
Electrical Properties
Electrical Conductivity	-	10000000 S/m
Resistivity	-	1e-7 m Ω
Superconducting Point	-	-
Heat and Conduction Properties
Thermal Conductivity	0.1513 W/(m K)	0.236 W/(m K)
Thermal Expansion	-	-
Magnetic Properties
Magnetic Type	Diamagnetic	Diamagnetic
Curie Point	-	-
Mass Magnetic Susceptibility	-5.9e-9 m3/kg	-1.13e-8 m3/kg
Molar Magnetic Susceptibility	-2.36e-11 m3/mol	-3.5e-10 m3/mol
Volume Magnetic Susceptibility	-1.05e-9	-0.0000206
Optical Properties
Refractive Index	1.000035	1.001212
Acoustic Properties
Speed of Sound	970 m/s	-

CAS Number	CAS7440-59-7	CAS7723-14-0
RTECS Number	RTECSMH6520000	{N/A, RTECSTH3495000, RTECSTH3500000, N/A}
DOT Hazard Class	2.2	{N/A, 4.1, 4.2, N/A}
DOT Numbers	1963	{N/A, 1338, 1381, 2447, N/A}
EU Number	-	-
NFPA Fire Rating	0	{N/A, 0, 4, N/A}
NFPA Hazards	-	N/ A, N/ A, N/ A, N/ A
NFPA Health Rating	1	{N/A, 0, 4, N/A}
NFPA Reactivity Rating	0	{N/A, 2, 2, N/A}
AutoIgnition Point	-	-
Flashpoint	-	-

Periodic Table Element Comparison: Compare Elements - Helium vs Phosphorus

Compare Helium and Phosphorus

Facts

History

Presence: Abundance in Nature and Around Us

Crystal Structure and Atomic Structure

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 Phosphorus with all Group 15 elements

Compare Phosphorus with all Period 3 elements

Compare Phosphorus with all Other Nonmetal elements