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 ...

Physicists develop innovative technique using carbon-dioxide lasers to detect radioactive materials from safe distances for ...

Studies that explore how the denser sections of atoms, known as atomic nuclei, interact with neutrons (i.e., particles with ...

Radioactivity is the term used to describe disintegration of atoms. The atom can be characterized by the number of protons in the nucleus. Some natural elements are unstable. Therefore, their nuclei ...

The radiation emitted from unstable nuclei is called ionising radiation because as it passes through matter it can dislodge outer electrons from atoms causing ... Alpha decay causes the mass ...

Neptuniam atoms are much more stable ... Pupils could explore decay chains and complete equations to show radioactive decay processes. They could also plot graphs of given data to calculate ...

In this week’s Science for All newsletter, Vasudevan Mukunth explains a new way to detect radioactive materials using ...

A half-life is a measure of the average lifetime of a radioactive substance, and specifies the time it takes for one-half of the original atoms to decay. Here, time is represented by trials.

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

It is also vital for effective management and storage of legacy radioactive wastes ... greater concentrations of hydrogen ...