Two nuclei are not identical but have the same number of nucleons. These are

The nuclei which are not identical but have same number of nucleons represent :

Nuclei of the isotopes have the same number of

Two radioactive materials A and B have decay constants 10lambda and lambda , respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of A of that of B will be 1//e after a time :

The radioactive materials X_1 and X_2 have decay constants 5lambda and lambda respectively. If intially they have the same number of nuclei, then the ratio of number of nuclei of X_1 to that of X_2 will be 1/e

Two raidoactive substances A and B Have decay constants 5lambda and lambda respectively. At t=0 they have the same number of nuclei.The ratio of number of nuclei of A to those of B will be after (1/e)^2 a time interval:

which pair of sysbols represent nuclei that have the same number of neurons ?

Two radioactive substance A and B have decay constants 5 lambda and lambda respectively. At t=0 they have the same number of nuclei. The ratio of number of nuclei of nuclei of A to those of B will be (1/e)^(2) after a time interval