निम्न समीकरणों को पूरा कीजिये-
`""_(90)Th^(234) to ""_(91)Pa^(234)+"………."+"…………"`

Complete the reaction : ""_90Th^(234) to ""_91Pa^(234) +?

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

Part of uranium decay series is shown ._(92)U^(234) to ._(90)Th^(234) to ._(91) Pa^(234) to ._(90)Th^(230) to ._(88)Ra^(226) How many parts of isotopes are there in the above series

Part of uranium decay series is shown ._(92)U^(234) to ._(90)Th^(234) to ._(91) Pa^(234) to ._(90)Th^(230) to ._(88)Ra^(226) How many parts of isotopes are there in the above series

How many alpha -particles will be emmited when ""_(90)Th""^(234) change into ""_(84)Po""^(218) ?

इनमे से कौन निम्न श्रेणी को पूरा करेगा : BDFHJ?