The radioactive nuclei are unstable and emit alpha `(._(2)He^(4))` , beta `(._(-1)e^(0))` and gamma `(._(0)gamma^(0))` radiations to acheive states of greater stability. Rutherford and Soddy suggested the following rules governing the radioactive decay, (i) The algebric sum of charges (atomic numbers) before and after disintegration must be the same. (ii) The sum of mass numbers before and after disintegration must also be the same.
In alpha decay

The radioactive nuclei are unstable and emit alpha (._(2)He^(4)) , beta (._(-1)e^(0)) and gamma (._(0)gamma^(0)) radiations to acheive states of greater stability. Rutherford and Soddy suggested the following rules governing the radioactive decay, (i) The algebric sum of charges (atomic numbers) before and after disintegration must be the same. (ii) The sum of mass numbers before and after disintegration must also be the same. In gamma decay

The radioactive nuclei are unstable and emit alpha (._(2)He^(4)) , beta (._(-1)e^(0)) and gamma (._(0)gamma^(0)) radiations to acheive states of greater stability. Rutherford and Soddy suggested the following rules governing the radioactive decay, (i) The algebric sum of charges (atomic numbers) before and after disintegration must be the same. (ii) The sum of mass numbers before and after disintegration must also be the same. In beta decay

The radioactive nuclei are unstable and emit alpha (._(2)He^(4)) , beta (._(-1)e^(0)) and gamma (._(0)gamma^(0)) radiations to acheive states of greater stability. Rutherford and Soddy suggested the following rules governing the radioactive decay, (i) The algebric sum of charges (atomic numbers) before and after disintegration must be the same. (ii) The sum of mass numbers before and after disintegration must also be the same. The particle emitted in the reaction ._(90)Th^(234) to ._(91)Pa^(234)+........ is

The radioactive nuclei are unstable and emit alpha (._(2)He^(4)) , beta (._(-1)e^(0)) and gamma (._(0)gamma^(0)) radiations to acheive states of greater stability. Rutherford and Soddy suggested the following rules governing the radioactive decay, (i) The algebric sum of charges (atomic numbers) before and after disintegration must be the same. (ii) The sum of mass numbers before and after disintegration must also be the same. Choose the correct product of nuclear reaction: ._(7)N^(14) +._(0)n^(1)to._(6)C^(14)+.........

A radioactive nucleus with Z protons and N neutrons emits an alpha- particle, 2 beta- particle and 2 gamma rays. The number of protons and neutrons in the nucleus left after the decay respectively, are

Two radioactive nuclei have same number of nuclei initially and decay constants as 5lambda . And 4lambda respectively. The ratio of number of nuclei will be 1/e^(2) after time: