radioactivity
🇺🇸
/ˌreɪdiəʊækˈtɪvəti/
🇬🇧
/ˌreɪdiəʊækˈtɪvəti/
noun
R
energy released when atoms break apart
Scientists measure radioactivity to check if materials are safe to handle.
translation
energy released when atoms break apart
Word Forms
Plural
radioactivities