Scientists measured the radioactivity emitted from the damaged reactor to assess the danger.

The lab warned us about the radioactives stored in the sealed cabinets.

Scientists measured the radioactivities in different soil samples to assess contamination.

The old laboratory stored a barrel of radioactive waste behind a locked door.

Researchers transported the radioactive to the secure vault for analysis.

They radioactively labeled the molecules to track their movement through the body.

After the accident, scientists measured several radioactive fallouts across the valley.

The laboratory published a report comparing radioactive datings from different layers of sediment.

The physicist explained how radioactive disintegration alters the atomic structure of certain isotopes.

In a long-lived parent-daughter decay series, radioactive equilibrium is established when the daughter nuclide's production rate equals its decay rate.