The probable decay modes of actinide nuclei are \(\alpha\), \(\beta ^{+}\), \(\beta ^{-}\), proton decay and spontaneous fission. Dominant decay mode is identified by studying the competition between different decay modes. Half-lives of \(\alpha\), \(\beta ^{+}\), \(\beta ^{-}\), proton decay and spontaneous fission are studied using Coulomb and proximity potential model, modified generalized liquid drop model, effective liquid drop model and many semi-empirical relations. Half-lives produced by the present work are compared with that of experiments. By studying the different decay modes in the actinide region, we have identified two proton emitters, 92 new \(\beta ^{-}\) emitters, 74 new \(\alpha\)-emitters and 115 new spontaneous fissionable isotopes. These newly identified isotopes with different half-lives and decay energies find an important application in the field of medicine and industry

锕系原子核的可能衰变模式为\(\alpha\)、\(\beta ^{+}\)、\(\beta ^{-}\)、质子衰变和自发裂变。通过研究不同衰减模式之间的竞争来确定主要衰减模式。半衰期的\（\阿尔法\） ，\（\的β^ {+} \） ，\（\的β^ { - } \） ，质子衰变和自发裂变使用库仑和接近势模型研究，修正广义液体液滴模型、有效液滴模型和许多半经验关系。将当前工作产生的半衰期与实验进行比较。通过研究锕系元素区域的不同衰变模式，我们确定了两个质子发射体，92 个新的\(\beta ^{-}\)发射器，74 个新的\(\alpha\)发射器和 115 个新的自发裂变同位素。这些新发现的具有不同半衰期和衰变能的同位素在医学和工业领域有重要应用