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Strontium-90 and cesium-137 and a whole lot more.
daughter isotope
An isotope can be produced if a nucleus gains a neutron or if one of the protons in its nucleus decays into a neutron and positron.
For example a thorium isotope is Th-231 or 23190 Th.
Another isotope is produced.
Strontium-90 and cesium-137 and a whole lot more.
daughter isotope
An isotope can be produced if a nucleus gains a neutron or if one of the protons in its nucleus decays into a neutron and positron.
For example a thorium isotope is Th-231 or 23190 Th.
Another isotope is produced.
Th-234
An isotope can be produced if a nucleus gains a neutron or if one of the protons in its nucleus decays into a neutron and positron.
This isotope does not occur in the environment and thus must be produced synthetically.
This isotope is lead-206.
Ytterbium is a naturally occuring rare earth element. However, an isotope of Ytterbium (Ytterbium-169) is an artificially produced isotope.
Beryllium-9 is a stable isotope.
This is the isotope erbium-167.