Tag Archives: Radionuclide

Radionuclide Half-Life

What is the half-life of a radionuclide if 1/16 of its initial mass is present after 2 hours?

Loading ... Loading ...

Reveal Answer »

B.

In every half-life, the mass decreases to half its previous value:

1/16 = 1/24

It takes four half-lives to decay down to 1/16 the original mass. Each must be 30 minutes long since the entire process takes two hours.


Enter your name and email below to get the question of the day sent straight to your inbox!

[wp_email_capture_form]