In this lesson, students will simulate the randomness of decay in radioactive atoms and visualize the half-life of a sample radioactive element. This lesson can be completed in two (2) 45-minute class ...

Key fact Half-life is the time it takes for the activity of the source to fall to half its original value. The illustration below shows how a radioactive sample is decaying over time. From the ...

In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

JON CHASE:'Nuclear weapons, nuclear power stations 'and life-saving medical techniques, all use radioactivity. JON CHASE:'But what is it? 'Elements ... half-life of a naturally occurring ...

In 1902 Ernest Rutherford and Frederick Soddy discovered that radioactive elements, such as uranium ... rate at which uranium breaks down (its half-life), he could use the proportion of lead ...

Early in the war Flerov had noticed that the flow of articles about radioactive ... a half-life of 51.5 days, researchers seemed to be getting close. IN THE ELEMENT KITCHEN - The Russian lab ...

Researchers at the University of Jyväskylä’s Accelerator Laboratory have created radioactive, neutron-rich lanthanum isotopes ...