Decay modes are $$\alpha$$, $${\beta }^{-}$$, $${\beta }^{+}$$, electron capture (EC) and isomeric transition (IT). EC results in the same daughter nucleus as would $${\beta }^{+}$$ decay. IT is a transition from a metastable excited state. Energies for $${\beta }^{±}$$ decays are the maxima; average energies are roughly one-half the maxima.

Isotopet1/2DecayMode(s)Energy(MeV)Percent $$\gamma$$-Ray Energy(MeV)Percent
$${\text{}}^{3}\text{H}$$12.33 y$${\beta }^{-}$$ ­0.0186100%
$${\text{}}^{14}\text{C}$$5730 y$${\beta }^{-}$$0.156100%
$${\text{}}^{13}\text{N}$$9.96 min$${\beta }^{+}$$1.20100%
$${\text{}}^{22}\text{Na}$$2.602 y$${\beta }^{+}$$0.5590%$$\gamma$$1.27100%
$${\text{}}^{32}\text{P}$$14.28 d$${\beta }^{-}$$1.71100%
$${\text{}}^{35}\text{S}$$87.4 d$${\beta }^{-}$$ ­0.167100%
$${\text{}}^{36}\text{Cl}$$$$3\text{.}\text{00}×{\text{10}}^{5}\text{y}$$$${\beta }^{-}$$0.710100%
$${\text{}}^{40}\text{K}$$$$1\text{.}\text{28}×{\text{10}}^{9}\text{y}$$$${\beta }^{-}$$1.3189%
$${\text{}}^{43}\text{K}$$22.3 h$${\beta }^{-}$$0.82787%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.37387%
0.61887%
$${\text{}}^{45}\text{Ca}$$165 d$${\beta }^{-}$$ ­0.257100%
$${\text{}}^{51}\text{Cr}$$27.70 dEC  $$\gamma$$0.32010%
$${\text{}}^{52}\text{Mn}$$5.59d$${\beta }^{+}$$3.6928%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$1.3328%
1.4328%
$${\text{}}^{52}\text{Fe}$$8.27 h$${\beta }^{+}$$1.8043% 0.16943%
0.37843%
$${\text{}}^{59}\text{Fe}$$44.6 d$${\beta }^{-}\text{s}$$0.27345%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$1.1057%
0.46655% 1.2943%
$${\text{}}^{60}\text{Co}$$5.271 y$${\beta }^{-}$$ ­0.318100%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$1.17100%
1.33100%
$${\text{}}^{65}\text{Zn}$$244.1 dEC  $$\gamma$$1.1251%
$${\text{}}^{67}\text{Ga}$$78.3 hEC  $$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.093370%
0.18535%
0.30019%
others
$${\text{}}^{75}\text{Se}$$118.5 dEC  $$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.12120%
0.13665%
0.26568%
0.28020%
others
$${\text{}}^{86}\text{Rb}$$18.8 d$${\beta }^{-}\text{s}$$0.699%$$\gamma$$1.089%
1.7791%
$${\text{}}^{85}\text{Sr}$$64.8 dEC  $$\gamma$$0.514100%
$${\text{}}^{90}\text{Sr}$$28.8 y$${\beta }^{-}$$ ­0.546100%
$${\text{}}^{90}\text{Y}$$64.1 h$${\beta }^{-}$$ ­2.28100%
$${\text{}}^{99m}\text{Tc}$$6.02 hIT  $$\gamma$$0.142100%
$${\text{}}^{113m}\text{In}$$99.5 minIT  $$\gamma$$0.392100%
$${\text{}}^{123}\text{I}$$13.0 hEC  $$\gamma$$0.159$$\text{≈100%}\text{}$$
$${\text{}}^{131}\text{I}$$8.040 d$${\beta }^{-}\text{s}$$0.2487%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.36485%
0.60793% others
others
$${\text{}}^{129}\text{Cs}$$32.3 hEC  $$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.040035%
0.37232%
0.41125%
others
$${\text{}}^{137}\text{Cs}$$30.17 y$${\beta }^{-}\text{s}$$ ­0.51195%$$\gamma$$0.66295%
1.175%
$${\text{}}^{140}\text{Ba}$$12.79 d$${\beta }^{-}$$1.035$$\text{≈100%}\text{}$$$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.03025%
0.04465%
0.53724%
others
$${\text{}}^{198}\text{Au}$$2.696 d$${\beta }^{-}$$ ­1.161$$\text{≈100%}\text{}$$$$\gamma$$0.412$$\text{≈100%}\text{}$$
$${\text{}}^{197}\text{Hg}$$64.1 hEC  $$\gamma$$0.0733100%
$${\text{}}^{210}\text{Po}$$138.38 d$$\alpha$$5.41100%
$${\text{}}^{226}\text{Ra}$$$$1\text{.}\text{60}×{\text{10}}^{3}\text{y}$$$$\alpha \text{s}$$4.685%$$\gamma$$0.186100%
4.8795%
$${\text{}}^{235}\text{U}$$$$7\text{.}\text{038}×{\text{10}}^{8}\text{y}$$$$\alpha$$4.68$$\text{≈100%}\text{}$$$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$numerous<0.400%
$${\text{}}^{238}\text{U}$$$$4\text{.}\text{468}×{\text{10}}^{9}\text{y}$$$$\alpha \text{s}$$4.2223%$$\gamma$$0.05023%
4.2777%
$${\text{}}^{237}\text{Np}$$$$2\text{.}\text{14}×{\text{10}}^{6}\text{y}$$$$\alpha \text{s}$$numerous $$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$numerous<0.250%
4.96 (max.)
$${\text{}}^{239}\text{Pu}$$$$2\text{.}\text{41}×{\text{10}}^{4}\text{y}$$$$\alpha \text{s}$$5.1911%$$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$$$7\text{.}5×{\text{10}}^{-5}$$73%
5.2315% 0.01315%
5.2473% 0.05210%
others
$${\text{}}^{243}\text{Am}$$$$7\text{.}\text{37}×{\text{10}}^{3}\text{y}$$$$\alpha \text{s}$$Max. 5.44 $$\gamma \phantom{\rule{0.10em}{0ex}}\text{s}$$0.075
5.3788% others
5.3211%
others