Four vessels 1, 2, 3 and 4 contain respectively, 10 g-atom (), 1 g-atom (), 5 g-atom () and 2 g-atom — Nuclear Chemistry and Radioactivity Chemistry Question

Question

Four vessels 1, 2, 3 and 4 contain respectively, 10 g-atom ($t_{1/2} = 10 \text{ h}$), 1 g-atom ($t_{1/2} = 5 \text{ h}$), 5 g-atom ($t_{1/2} = 2 \text{ h}$) and 2 g-atom ($t_{1/2} = 1 \text{ h}$) of different radioactive nuclides. In the beginning, the maximum radioactivity would be exhibited by the vessel