Periodic Table Element Comparison: Compare Elements - Oxygen vs Hydrogen

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

Oxygen and Hydrogen Comparison

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1
1
H
Hydrogen
1.008

Atomic #

Electronic Shell #

Symbol
Name
Atomic Weight
HGas
HgLiquid
CSolid
Metals
Metalloids
NonMetals
Alkali metals
Alkali earth metals
Lanthanoids
Transition metals
Post-transition metals
Other nonmetals
Halogens
Nobel gas
Actinoids
2
He
Helium
4.003
2
3
Li
Lithium
6.941
4
Be
Beryllium
9.012
5
B
Boron
10.811
6
C
Carbon
12.011
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.998
10
Ne
Neon
20.180
3
11
Na
Sodium
22.990
12
Mg
Magnesium
24.305
13
Al
Aluminium
26.982
14
Si
Silicon
28.085
15
P
Phosphorus
30.974
16
S
Sulfur
32.065
17
Cl
Chlorine
35.453
18
Ar
Argon
39.948
4
19
K
Potassium
39.098
20
Ca
Calcium
40.078
21
Sc
Scandium
44.956
22
Ti
Titanium
47.867
23
V
Vanadium
50.941
24
Cr
Chromium
51.996
25
Mn
Manganese
54.938
26
Fe
Iron
55.845
27
Co
Cobalt
58.933
28
Ni
Nickel
58.693
29
Cu
Copper
63.546
30
Zn
Zinc
65.409
31
Ga
Gallium
69.723
32
Ge
Germanium
72.640
33
As
Arsenic
74.922
34
Se
Selenium
78.960
35
Br
Bromine
79.904
36
Kr
Krypton
83.798
5
37
Rb
Rubidium
85.468
38
Sr
Strontium
87.620
39
Y
Yttrium
88.906
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.906
42
Mo
Molybdenum
95.940
43
Tc
Technetium
98
44
Ru
Ruthenium
101.070
45
Rh
Rhodium
102.906
46
Pd
Palladium
106.420
47
Ag
Silver
107.868
48
Cd
Cadmium
112.411
49
In
Indium
114.818
50
Sn
Tin
118.710
51
Sb
Antimony
121.760
52
Te
Tellurium
127.600
53
I
Iodine
126.904
54
Xe
Xenon
131.293
6
55
Cs
Cesium
132.905
56
Ba
Barium
137.327
57 - 71
La - Lu
Lanthanides
72
Hf
Hafnium
178.490
73
Ta
Tantalum
180.948
74
W
Tungsten
183.840
75
Re
Rhenium
186.207
76
Os
Osmium
190.230
77
Ir
Iridium
192.217
78
Pt
Platinum
195.078
79
Au
Gold
196.967
80
Hg
Mercury
200.590
81
Tl
Thallium
204.383
82
Pb
Lead
207.200
83
Bi
Bismuth
208.980
84
Po
Polonium
209
85
At
Astatine
210
86
Rn
Radon
222
7
87
Fr
Francium
223
88
Ra
Radium
226
89 - 103
Ac - Lr
Actinides
104
Rf
Rutherfordium
261
105
Db
Dubnium
262
106
Sg
Seaborgium
266
107
Bh
Bohrium
264
108
Hs
Hassium
269
109
Mt
Meitnerium
268
110
Ds
Darmstadtium
281
111
Rg
Roentgenium
272
112
Cn
Copernicium
285
113
Nh
Nihonium
284
114
Fl
Flerovium
289
115
Mc
Moscovium
288
116
Lv
Livermorium
292
117
Ts
Tennessine
294
118
Og
Oganesson
294
Lanthanides
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.240
61
Pm
Promethium
145
62
Sm
Samarium
150.360
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.250
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.500
67
Ho
Holmium
164.930
68
Er
Erbium
167.259
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.040
71
Lu
Lutetium
174.967
Actinides
89
Ac
Actinium
227
90
Th
Thorium
232.038
91
Pa
Protactinium
231.036
92
U
Uranium
238.029
93
Np
Neptunium
237
94
Pu
Plutonium
244
95
Am
Americium
243
96
Cm
Curium
247
97
Bk
Berkelium
247
98
Cf
Californium
251
99
Es
Einsteinium
252
100
Fm
Fermium
257
101
Md
Mendelevium
258
102
No
Nobelium
259
103
Lr
Lawrencium
262

Facts

NameOxygenHydrogen
Atomic Number81
Atomic SymbolOH
Atomic Weight15.9994 1.00794
Phase at STPGas Gas
ColorColorless Colorless
Metallic ClassificationOther Nonmetal Other Nonmetal
Group in Periodic Tablegroup 16 group 1
Group Nameoxygen familylithium family
Period in Periodic Tableperiod 2 period 1
Block in Periodic Tablep -blocks -block
Electronic Configuration[He] 2s2 2p4 1s1
Electronic Shell Structure (Electrons per shell)2, 61
Melting Point54.8 K14.01 K
Boiling Point90.2 K20.28 K
CAS NumberCAS7782-44-7 CAS1333-74-0
Neighborhood ElementsNeighborhood Elements of OxygenNeighborhood Elements of Hydrogen

History

ParameterOxygenHydrogen
HistoryThe element Oxygen was discovered by W. Scheele in year 1771 in Sweden and United Kingdom. Oxygen derived its name from the Greek word oxy-, both 'sharp' and 'acid', and -gen, meaning 'acid-forming'.The element Hydrogen was discovered by H. Cavendish in year 1766 in United Kingdom. Hydrogen derived its name from the Greek elements hydro- and -gen meaning 'water-forming'.
DiscoveryW. Scheele (1771)H. Cavendish (1766)
IsolatedW. Scheele (1771)Paracelsus (1500)

Presence: Abundance in Nature and Around Us

Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)

PropertyOxygenHydrogen
Abundance in Universe10000000 / 800000750000000 / 930000000
Abundance in Sun9000000 / 700000750000000 / 930000000
Abundance in Meteorites410000000 / 48000000024000000 / 170000000
Abundance in Earth's Crust460000000 / 6000000001500000 / 31000000
Abundance in Oceans857000000 / 331000000107800000 / 662000000
Abundance in Humans610000000 / 240000000100000000 / 620000000

Crystal Structure and Atomic Structure

PropertyOxygenHydrogen
Atomic Volume22.4134 cm3/mol22.4135 cm3/mol
Atomic Radius48 pm53 pm
Covalent Radius73 pm37 pm
Van der Waals Radius152 pm120 pm

Atomic Spectrum - Spectral Lines

Emission SpectrumEmission Spectrum of Oxygen | SchoolMyKidsEmission Spectrum of Hydrogen | SchoolMyKids
Absorption SpectrumAbsorption Spectrum of Oxygen | SchoolMyKidsAbsorption Spectrum of Hydrogen | SchoolMyKids
Lattice Constant540.3, 342.9, 508.6 pm470, 470, 340 pm
Lattice Angleπ/2, 2.313085, π/2π/2, π/2, 2 π/3
Space Group NameC12/m1 P63/mmc
Space Group Number12 194
Crystal Structure

Base Centered Monoclinic

8 O Oxygen - Crystal Structure | SchoolMyKids

Simple Hexagonal

1 H Hydrogen - Crystal Structure | SchoolMyKids

Atomic and Orbital Properties

PropertyOxygenHydrogen
Atomic Number81
Number of Electrons (with no charge)81
Number of Protons81
Mass Number15.99941.00794
Number of Neutrons80
Shell structure (Electrons per energy level)2, 61
Electron Configuration[He] 2s2 2p4 1s1
Valence Electrons2s2 2p4 1s1
Oxidation State-2-1, 1
Atomic Term Symbol (Quantum Numbers)3P2 2S1/2
Shell structure8 O Oxygen Electron Shell Structure | SchoolMyKids1 H Hydrogen Electron Shell Structure | SchoolMyKids

Isotopes and Nuclear Properties

Oxygen has 3 stable naturally occuring isotopes while Hydrogen has 2 stable naturally occuring isotopes.

ParameterOxygenHydrogen
Known Isotopes12O, 13O, 14O, 15O, 16O, 17O, 18O, 19O, 20O, 21O, 22O, 23O, 24O, 25O, 26O, 27O, 28O1H, 2H, 3H, 4H, 5H, 6H, 7H
Stable IsotopesNaturally occurring stable isotopes:

16O, 17O, 18O

Naturally occurring stable isotopes:

1H, 2H

Neutron Cross Section 0.00028 0.332
Neutron Mass Absorption 0.000001 0.011

Chemical Properties: Ionization Energies and electron affinity

PropertyOxygenHydrogen
Valence or Valency2 1
Electronegativity3.44 Pauling Scale2.2 Pauling Scale
Electron Affinity141 kJ/mol72.8 kJ/mol
Ionization Energies
1st: 1313.9 kJ/mol
2nd: 3388.3 kJ/mol
3rd: 5300.5 kJ/mol
4th: 7469.2 kJ/mol
5th: 10989.5 kJ/mol
6th: 13326.5 kJ/mol
7th: 71330 kJ/mol
8th: 84078 kJ/mol
1st: 1312 kJ/mol

Physical Properties

PropertyOxygenHydrogen
Density0.001429 g/cm30.0000899 g/cm3
Molar Volume22.4134 cm3/mol22.4135 cm3/mol

Elastic Properties

Young Modulus- -
Shear Modulus- -
Bulk Modulus- -
Poisson Ratio- -

Hardness - Tests to Measure of Hardness of Element

Mohs Hardness- -
Vickers Hardness- -
Brinell Hardness- -

Electrical Properties

Electrical Conductivity- -
Resistivity - -
Superconducting Point- -

Heat and Conduction Properties

Thermal Conductivity0.02658 W/(m K)0.1805 W/(m K)
Thermal Expansion- -

Magnetic Properties

Magnetic TypeParamagnetic Diamagnetic
Curie Point- -
Mass Magnetic Susceptibility0.000001335 m3/kg-2.48e-8 m3/kg
Molar Magnetic Susceptibility4.27184e-8 m3/mol-4.999e-11 m3/mol
Volume Magnetic Susceptibility0.00000190772 -2.23e-9

Optical Properties

Refractive Index1.000271 1.000132

Acoustic Properties

Speed of Sound317.5 m/s1270 m/s

Thermal Properties - Enthalpies and thermodynamics

PropertyOxygenHydrogen
Melting Point54.8 K14.01 K
Boiling Point90.2 K20.28 K
Critical Temperature154.59 K32.97 K
Superconducting Point- -

Enthalpies

Heat of Fusion0.222 kJ/mol0.558 kJ/mol
Heat of Vaporization3.41 kJ/mol0.452 kJ/mol
Heat of Combustion- -

Regulatory and Health - Health and Safety Parameters and Guidelines

ParameterOxygenHydrogen
CAS NumberCAS7782-44-7 CAS1333-74-0
RTECS NumberRTECSRS2060000 RTECSMW8900000
DOT Hazard Class2.2 2.1
DOT Numbers1073 1966
EU Number- -
NFPA Fire Rating0 4
NFPA Health Rating3 3
NFPA Reactivity Rating2 0
NFPA HazardsOxidizing Agent -
AutoIgnition Point- 535.5 °C
Flashpoint- -18 °C