The atom bomb is a fission device, and typically uses particularly unstable isotopes of uranium, while the hydrogen bomb is basically a fusion device, and uses rare, but essentially stable isotopes of hydrogen.
22.
The spherical shell model fairly accurately predicts the energies of protons emitted by unstable isotopes ( forms ) of nuclei containing between 69 protons ( thulium ) and 81 protons ( thallium ).
23.
All elements beyond bismuth have relatively or very unstable isotopes : astatine, radon, and francium are extremely short-lived ( and only have half-lives longer than isotopes of the heaviest elements found so far ).
24.
Unlike other radiometric dating techniques, those using the uranium decay series ( except for those using the stable final isotopes 206 Pb and 207 Pb ) compare the ratios of two radioactive unstable isotopes.
25.
Irradiating the natural stable isotope of aluminum with alpha particles ( i . e . helium nuclei ) results in an unstable isotope of phosphorus : 27 Al + 4 He ?! 30 P + 1 n.
26.
:: I am certainly no expert, but the answer to your question is " it depends . " If the carbon atom is an unstable isotope ( radioactive ), it will spontaneously c 05 : 11, 26 November 2009 ( UTC)
27.
Individual atoms, as StuRat and Tango said, do not age ( in the case of unstable isotopes this means that an atom / nucleus just before it decays is indistinguishable from one that has just been created ) .-- talk ) 09 : 49, 26 November 2009 ( UTC)
28.
There are 33 other unstable isotopes recognized, the longest-lived of which are 183 Re with a half-life of 70 days, 184 Re with a half-life of 38 days, 186 Re with a half-life of 3.7186 days, 182 Re with a half-life of 64.0 hours, and 189 Re with a half-life of 24.3 hours.
29.
In addition to the four stable isotopes, thirty-one unstable isotopes of Strontium are known to exist ( see Table, below ) : the longest-lived of these are 90 Sr with a half-life of 28.9 years and 85 Sr with a half-life of 64.853 days . Of importance are strontium-89 ( 89 Sr ) with a half-life of 50.57 days, and strontium-90 ( 90 Sr ).
