A hazardous materials team responded to an Oklahoma high school after it was reported that a student brought in a ...

Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...

Many chemical elements in rock exist in a number of slightly different forms, known as isotopes. Certain isotopes are unstable and undergo a process of radioactive decay, slowly and steadily ...

Scottish Courts and Tribunals Service said action had been taken to deal with radon gas in three areas of the building.

These radioactive elements in minerals and ores originally found ... The activity concentrations of the radionuclides in rocks and soil found in the nature are generally low. Certain minerals, ...

That’s the situation that faced authorities in Australia, as they scoured over a thousand kilometers of desert highway for a tiny missing radioactive source with the potential to cause serious harm.

Explain that the pennies, dice, and sugar cubes represent atoms of different radioactive isotopes. The boxes symbolize rocks containing those isotopes. Each team's mission is to determine the half ...