Atomnummer | 10 |
---|---|
Atommasse | 20.1797 |
mass number | 20 |
Gruppe | 18 |
---|---|
Periode | 2 |
Blok | p |
proton | 10 p+ |
---|---|
neutron | 10 n0 |
elektron | 10 e- |
Atomradius | |
---|---|
molar volume | |
Kovalent Radius | |
Metallic Radius | |
Ionisk radius | |
Crystal Radius | |
Van der Waals-radius | |
massefylde |
energi | |
---|---|
proton affinity | |
electron affinity | |
ioniseringsenergi | |
Fordampningsvarme | |
smeltevarme | |
standard enthalpy of formation | |
elektron | |
Elektronskal | 2, 8 |
Valenselektron | 8 ⓘ |
electron configuration | [He] 2s2 2p6ⓘ 1s2 2s2 2p6 |
Oxidationstrin | |
Elektronegativitet | |
Electrophilicity Index | |
fundamental state of matter | |
stoffase | Gas |
gaseous state of matter | Monoatomic |
Kogepunkt | |
Smeltepunkt | |
critical pressure | |
critical temperature | |
trippelpunkt | |
appearance | |
farve | Colorless
|
appearance | colorless gas exhibiting an orange-red glow when placed in a high voltage electric field |
Brydningsindeks | 1,000067
|
materialeegenskab | |
Varmeledningsevne | |
Termisk ekspansion | |
molar heat capacity | |
Varmefylde | |
Adiabateksponenten | 5/3 |
electrical properties | |
type | |
specifik ledningsevne | |
Elektrisk resistivitet | |
superledning | |
Magnetisme | |
type | diamagnetic |
magnetic susceptibility (Mass) | -0,0000000041 m³/Kg
|
magnetic susceptibility (Molar) | -0,0000000000827 m³/mol
|
magnetic susceptibility (Volume) | -0,00000000369
|
magnetic ordering | |
Curietemperaturen | |
Néel temperature | |
struktur | |
Krystalstruktur | Fladecentreret Kubisk (FCC) |
lattice constant | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
hårdhed | |
Kompressibilitetsmodul | |
Forskydningsmodul | |
E-modul | |
Poissons forhold | |
speed of sound | |
klassificering | |
Kategori | Ædelgasser, Noble gases |
CAS Group | VIII |
IUPAC Group | VIIIA |
Glawe Number | 2 |
Mendeleev Number | 113 |
Pettifor Number | 2 |
Geochemical Class | volatile |
Goldschmidt classification | atmophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 0,04
|
Neutron Mass Absorption | 0,00059
|
quantum number | 1S0 |
rumgruppe | 225 (Fm_3m) |
Stable Isotopes | 3 |
---|---|
Unstable Isotopes | 17 |
Natural Isotopes | 3 |
mass number | 15 |
---|---|
neutron number | 5 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 770 ± 300 ys
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 2014 |
Paritet | - |
decay mode | Intensitet |
---|---|
2p (2-proton emission) | 100% |
mass number | 16 |
---|---|
neutron number | 6 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
2p (2-proton emission) | 100% |
mass number | 17 |
---|---|
neutron number | 7 |
Relative Atomic Mass | |
g-factor | 1,5746 ± 0,0028
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 109,2 ± 0,6 ms
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1963 |
Paritet | - |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 94.4% |
β+α (β+-delayed α emission) | 3.51% |
B+pA | 0.014% |
mass number | 18 |
---|---|
neutron number | 8 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 1.664,2 ± 0,47 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1954 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 19 |
---|---|
neutron number | 9 |
Relative Atomic Mass | |
g-factor | -3,7703 ± 0,00014
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 17,2569 ± 0,0019 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1939 |
Paritet | + |
decay mode | Intensitet |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 20 |
---|---|
neutron number | 10 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 90,48 ± 0,03
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1913 |
Paritet | + |
mass number | 21 |
---|---|
neutron number | 11 |
Relative Atomic Mass | |
g-factor | -0,44113333333333 ± 0,00002
|
natural abundance | 0,27 ± 0,01
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1928 |
Paritet | + |
mass number | 22 |
---|---|
neutron number | 12 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 9,25 ± 0,03
|
radioaktivitet | stable isotope |
halveringstid | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1913 |
Paritet | + |
mass number | 23 |
---|---|
neutron number | 13 |
Relative Atomic Mass | |
g-factor | -0,43176 ± 0,0004
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 37,15 ± 0,03 s
|
spin | 5/2 |
nuclear quadrupole moment | 0,145 ± 0,013
|
opdagelsesdato | 1936 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 24 |
---|---|
neutron number | 14 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 3,38 ± 0,02 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1956 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 25 |
---|---|
neutron number | 15 |
Relative Atomic Mass | |
g-factor | -2,012 ± 0,001
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 602 ± 8 ms
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
mass number | 26 |
---|---|
neutron number | 16 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 197 ± 2 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1970 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.13% |
mass number | 27 |
---|---|
neutron number | 17 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 30,9 ± 1,1 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1977 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 2% |
2n (2-neutron emission) |
mass number | 28 |
---|---|
neutron number | 18 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 18,8 ± 0,2 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1979 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 12% |
2n (2-neutron emission) | 3.7% |
mass number | 29 |
---|---|
neutron number | 19 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 14,7 ± 0,4 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1985 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 28% |
2n (2-neutron emission) | 4% |
mass number | 30 |
---|---|
neutron number | 20 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 7,22 ± 0,18 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1985 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 13% |
2n (2-neutron emission) | 8.9% |
mass number | 31 |
---|---|
neutron number | 21 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 3,4 ± 0,8 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
opdagelsesdato | 1996 |
Paritet | - |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 32 |
---|---|
neutron number | 22 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | 3,5 ± 0,9 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 1990 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 33 |
---|---|
neutron number | 23 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 7/2 |
nuclear quadrupole moment | |
opdagelsesdato | |
Paritet | - |
decay mode | Intensitet |
---|---|
n (neutron emission) |
mass number | 34 |
---|---|
neutron number | 24 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioaktivitet | ☢️ radioactive element |
halveringstid | |
spin | 0 |
nuclear quadrupole moment | 0
|
opdagelsesdato | 2002 |
Paritet | + |
decay mode | Intensitet |
---|---|
β− (β− decay) | |
2n (2-neutron emission) | |
β− n (β−-delayed neutron emission) |
opdager eller opfinder | Sir William Ramsey, M.W. Travers |
---|---|
fundsted | England |
opdagelsesdato | 1898 |
etymologi | Greek: neos (new). |
udtale | NEE-on (engelsk) |
Forekomst | |
---|---|
Abundance in Earth's crust | |
natural abundance (verdenshave) | |
natural abundance (menneskelige krop) | |
natural abundance (Meteoroid) | |
natural abundance (Solen) | 0,1 %
|
Abundance in Universe | 0,13 %
|
1 | s | 0.3579 |
2 | p | 4.2416 |
2 | s | 4.2416 |