Translations:Zinc/14/en: Difference between revisions

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Message definition (Zinc)
Several dozen [[radioisotope]]s have been characterized. {{chem|65|Zn}}, which has a half-life of 243.66&nbsp;days, is the least active radioisotope, followed by {{chem|72|Zn}} with a half-life of 46.5&nbsp;hours. Zinc has 10 [[nuclear isomer]]s, of which <sup>69m</sup>Zn has the longest half-life, 13.76 h. The superscript ''m'' indicates a [[metastable]] isotope. The nucleus of a metastable isotope is in an [[excited state]] and will return to the [[ground state]] by emitting a [[photon]] in the form of a [[gamma ray]]. {{chem|61|Zn}} has three excited metastable states and {{chem|73|Zn}} has two. The isotopes {{chem|65|Zn}}, {{chem|71|Zn}}, {{chem|77|Zn}} and {{chem|78|Zn}} each have only one excited metastable state.

Several dozen radioisotopes have been characterized. 65
Zn, which has a half-life of 243.66 days, is the least active radioisotope, followed by 72
Zn with a half-life of 46.5 hours. Zinc has 10 nuclear isomers, of which 69mZn has the longest half-life, 13.76 h. The superscript m indicates a metastable isotope. The nucleus of a metastable isotope is in an excited state and will return to the ground state by emitting a photon in the form of a gamma ray. 61
Zn has three excited metastable states and 73
Zn has two. The isotopes 65
Zn, 71
Zn, 77
Zn and 78
Zn each have only one excited metastable state.

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