Hydrogen (H)
chemical element with symbol H and atomic number 1; lightest and most abundant substance in the universe
| Atomic Number | 1 |
|---|---|
| Atomic Weight | 1.008 |
| mass number | 1 |
| Group | 1 |
|---|---|
| Period | 1 |
| Block | s |
| proton | 1 p+ |
|---|---|
| neutron | 0 n0 |
| electron | 1 e- |
Physical Property
| Atomic Radius | |
|---|---|
| molar volume | |
| Covalent Radius | |
| Metallic Radius | |
| ionic radius | |
| Crystal Radius | |
| Van der Waals radius | |
| density |
Chemical Property
| energy | |
|---|---|
| proton affinity | |
| electron affinity | |
| ionization energy | |
| enthalpy of vaporization | |
| enthalpy of fusion | |
| standard enthalpy of formation | |
| electron | |
| electron shell | 1 |
 | |
| valence electron | 1 ⓘ |
 | |
| electron configuration | 1s1ⓘ |
  | |
| oxidation number | -1, 1 |
| electronegativity |
2.2
|
| Electrophilicity Index | |
| fundamental state of matter | |
| phase of matter | {ERROR}|
| gaseous state of matter | Diatomic |
| Boiling Point | |
| Melting Point | |
| critical pressure | |
| critical temperature | |
| triple point | |
| appearance | |
| color | Black
|
| appearance | colorless gas |
| refractive index | 1,000132
|
| thermodynamic material property | |
| Thermal Conductivity | |
| thermal expansion | |
| molar heat capacity | |
| Specific Heat Capacity | |
| heat capacity ratio | 7/5 |
| electrical properties | |
| type | |
| electrical conductivity | |
| electrical resistivity | |
| superconductivity | |
| magnetism | |
| type | diamagnetic |
| magnetic susceptibility (Mass) | −0,0000000248 m³/Kg
|
| magnetic susceptibility (Molar) | −0,00000000004999 m³/mol
|
| magnetic susceptibility (Volume) | −0,00000000223
|
| magnetic ordering | |
| Curie temperature | |
| Néel temperature | |
| structure | |
| Crystal Structure | {ERROR} |
| lattice constant | |
| Lattice Angles | π/2, π/2, 2 π/3 |
| mechanical property | |
| hardness | |
| bulk modulus | |
| shear modulus | |
| Young's modulus | |
| Poisson's ratio | |
| speed of sound | |
| classification | |
| Category | Actinides, Nonmetals |
| CAS Group | IA |
| IUPAC Group | IA |
| Glawe Number | 103 |
| Mendeleev Number | 105 |
| Pettifor Number | 103 |
| Geochemical Class | volatile |
| Goldschmidt classification | atmophile |
other
| Gas Basicity | |
|---|---|
| polarizability | |
| C6 Dispersion Coefficient | |
| allotrope | Dihydrogen |
| Neutron cross section | 0,332
|
| Neutron Mass Absorption | 0,011
|
| quantum number | 2S1/2 |
| space group | 194 (P63/mmc) |
Isotopes of Hydrogen
| Stable Isotopes | 2 |
|---|---|
| Unstable Isotopes | 5 |
| Natural Isotopes | 2 |
1H
| mass number | 1 |
|---|---|
| neutron number | 0 |
| Relative Atomic Mass | |
| g-factor | 5,585694702 ± 0,000000018
|
| natural abundance | 99,9855 ± 0,0078
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1920 |
| parity | + |
2D
| mass number | 2 |
|---|---|
| neutron number | 1 |
| Relative Atomic Mass | |
| g-factor | 0,857438231 ± 0,000000005
|
| natural abundance | 0,0145 ± 0,0078
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 1 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1932 |
| parity | + |
3T
| mass number | 3 |
|---|---|
| neutron number | 2 |
| Relative Atomic Mass | |
| g-factor | 5,95792492 ± 0,000000028
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 12,32 ± 0,02 y
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1934 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
4H
| mass number | 4 |
|---|---|
| neutron number | 3 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 139 ± 10 ys
|
| spin | 2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1981 |
| parity | - |
| decay mode | intensity |
|---|---|
| n (neutron emission) | 100% |
5H
| mass number | 5 |
|---|---|
| neutron number | 4 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 86 ± 6 ys
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1987 |
| parity | + |
| decay mode | intensity |
|---|---|
| 2n (2-neutron emission) | 100% |
6H
| mass number | 6 |
|---|---|
| neutron number | 5 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 294 ± 67 ys
|
| spin | 2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1984 |
| parity | - |
| decay mode | intensity |
|---|---|
| n (neutron emission) | |
| 3n (3-neutron emission) |
7H
| mass number | 7 |
|---|---|
| neutron number | 6 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 652 ± 558 ys
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 2003 |
| parity | + |
| decay mode | intensity |
|---|---|
| 2n (2-neutron emission) |
history
| discoverer or inventor | Henry Cavendish |
|---|---|
| location of discovery | England |
| time of discovery or invention | 1766 |
| etymology | Greek: hydro (water) and genes (generate) |
| pronunciation | HI-dreh-jen (engelsk) |
source
| Abundance | |
|---|---|
| Abundance in Earth's crust | |
| natural abundance (ocean) | |
| natural abundance (human body) | 10 %
|
| natural abundance (meteoroid) | 2,4 %
|
| natural abundance (Sun) | 75 %
|
| Abundance in Universe | 75 %
|
Nuclear Screening Constants
| 1 | s | 0 |
