i n e volume (D) Atomic rauiusThe half life period of a radioactive el

1.	i n e volume (D) Atomic rauiusThe half life period of a radioactive element is 140days. After 560 days the remaining amount of theelement would be-01
Answer» A/Ao = (1/2)^t/T A is final amount , t is time , & T is half life A = Ao(1/2)^t/T A = Ao(1/2)^560/140 A = Ao(1/2)^4 = (1/16)Ao Ao = initial amount A = Ao/16 The amount of element after 560 days is 1/16 of initial amount.

i n e volume (D) Atomic rauiusThe half life period of a radioactive element is 140days. After 560 days the remaining amount of theelement would be-01

Answer»

A/Ao = (1/2)^t/T

A is final amount , t is time , & T is half life

A = Ao(1/2)^t/T

A = Ao(1/2)^560/140

A = Ao(1/2)^4 = (1/16)Ao

Ao = initial amount

A = Ao/16

The amount of element after 560 days is 1/16 of initial amount.