Phosphorus-35
Properties and data of the isotope 35P.
See also: list of Phosphorus isotopes.
General data
Name of the isotope:Phosphorus-35; P-35Symbol:35P or 3515PMass number A:35 (= number of nucleons)Atomic number Z:15 (= number of protons)Neutrons N:20Isotopic mass:34.9733140(20) u (atomic weight of Phosphorus-35)Nuclide mass:34.9650854 u (calculated nuclear mass without electrons)Mass excess:-24.85785 MeVMass defect:0.3173598 u (per nucleus)Nuclear binding energy:295.61874954 MeV (per nucleus)
8.44624999 MeV (average binding energy per nucleon)Separation energy:SN = 8.3804(20) MeV (first neutron)
SP = 12.1551(20) MeV (first proton)Half-life:47.3(8) sDecay constant λ:0.014654274430443 s-1Specific activity α:2.59559131824 × 10+20 Bq g-1
7015111670.9297 Ci g-1Spin and parity:
(nuclear angular momentum)1/2+Mirror nucleus:Calcium-35Year of discovery:1971
Radioactive Decay
Half-life T½ = 47.3(8) s respectively 4.73 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 35S | 100 % | 3.9884(19) MeV | |
Parent Nuclides
Direct parent isotopes are: 35Si, 36Si.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 20) and isobaric (same nucleon number A = 35) with Phosphorus-35. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 20 | Isobar A = 35 |
8 | 28O | |
9 | 29F | |
10 | 30Ne | |
11 | 31Na | 35Na |
12 | 32Mg | 35Mg |
13 | 33Al | 35Al |
14 | 34Si | 35Si |
15 | 35P | 35P |
16 | 36S | 35S |
17 | 37Cl | 35Cl |
18 | 38Ar | 35Ar |
19 | 39K | 35K |
20 | 40Ca | 35Ca |
21 | 41Sc | |
22 | 42Ti | |
23 | 43V | |
24 | 44Cr | |
25 | 45Mn | |
26 | 46Fe | |
27 | 47Co | |
28 | 48Ni | |
External data and identifiers
Last update: 2023-10-04
Perma link: https://www.chemlin.org/isotope/phosphorus-35
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