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Hydrogen-3

General
Name, symbol tritium, triton, 3H
Neutrons 2
Protons 1
Nuclide Data
Natural abundance trace
Half-life 12.32 years
Decay products helium-3
Isotope mass 3.0160492 u
Spin 1/2+
Excess energy 14949.794 ± 0.001 keV
Binding energy 8481.821 ± 0.004 keV
Mode Intensity Energy
β- 100% 0.018590 MeV

Contents

[edit] Sources

All isotope data

[edit] Isotopes listed

A hard line of listed isotopes are those with half-lives of 24 hours or greater. This is done because the average person would have no chance of comming into contact with any other isotopes. If there is contact it would have no impact on their lives. A softening of the line exists in the listing of isotopes with shorter half-lives that are likely to come into contact with "normal persons". A normal person is a non-nuclear worker.

[edit] Decay methods

A decay methods is listed as occuring if its branching percentage is greater than 3% of any particular energy level. If the sum of branching for a particular decay method is greater than 3% but an individual energy does not have a 3% occurance, the decay method is not listed as occuring. However, there is one caveat. If there is only one decay method (other than gamma emission) then the decay method is listed as occuring anyway.

[edit] Decay Emission Energy

Only decay energies with an occurance of greater than 3% are listed as occuring. Electron capture is not listed as having any decay energy because there is no actual emission of anything other than neutrinos. If there are more than four applicable decay energies only the top occuring four are listed, in interest of space.

[edit] Daughter Products

Gamma emissions are not listed as having a daugher product because a gamma emission is a release of excess energy without any other nuclear transformation. An internal conversion emssion on the other hand does have the ground-state as a daughter product.