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Oxygen-16

Properties and data of the isotope 16O.

 

See also: list of Oxygen isotopes.

 

General data

Name of the isotope:Oxygen-16; O-16Symbol:16OMass number A:16Atomic number Z:8 (= number of protons)Neutrons N:8Isotopic mass:15.994914620(2) u (atomic weight of Oxygen-16)Nuclide mass:15.990526 u (calculated nuclear mass without electrons)Mass excess:-4.737 MeVMass defect:0.137004964 u (per nucleus)Nuclear binding energy:127.61930194 MeV (per nucleus)
7.97620637 MeV (average binding energy per nucleon)
Separation energy:SN = 15.6639(5) MeV (first neutron)
SP = 12.12741(0) MeV (first proton)
Half-life:stableSpin and parity:0+isobaric spin: 0Charge radius:2.6991(52) femtometer fmYear of discovery:1919

 

Parent Nuclides

Direct parent isotope is: 16N.

 

Occurrence

Comparison of the natural Sauerstoff isotopes including isotopic abundance (proportion of the isotope mixture):

 

Atomic Mass maQuantityHalf-lifeSpin
Sauerstoff
Isotopic mixture
15,999 u100 %
Isotope 16O15,994914620(2) u99,757 %stable0+
Isotope 17O16,999131757(5) u0,0383 %stable5/2+
Isotope 18O17,999159613(6) u0,2045 %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 8) and isobaric (same nucleon number A = 16) with Oxygen-16. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 8Isobar A = 16
210He
311Li
412Be16Be
513B16B
614C16C
715N16N
816O16O
917F16F
1018Ne16Ne
1119Na
1220Mg
1321Al
1422Si

 

External data and identifiers

Adopted Levels, Gammas:NuDat 16O

 


Category: Isotopes

Last update: 11.10.2020



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