Question

A sample of radioactive iodine-131 is found to have an activity level of 4X10^-6 curies and a half-life of 8 days. HOw much time must pass before the activity level of the radioactive waste drops to 2.5 X10^-5 curies?

Answer 1

Answer:Iodine 131 Half Life Graph

As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131.

...

10.3: Half-Life.

Nuclide Half-Life (t1/2) Decay Mode

Iodine-131 8.07 days β−

Nitrogen-16 7.2 seconds β−

Phosphorus-32 14.3 days β−

Plutonium-239 24,100 years α

Step-by-step explanation:

Answer 2

cvbcbcvbvcb

Step-by-step explanation: