6. Who among the following discovered Radioactivity?

Select the scientist who discovered radioactivity.  i. Thomson ii. Becquerel iii. Roentgen

Which French scientist is credited with discovering radioactivity in 1896?

His fame rests on his discovery of radioactivity in early 1896. Group of answer choicesAndre Marie AmpereAntoine Henri BecquerelAlfred AdlerLouis Bleriot

Define radioactivity

Some of the main sources of radioactivity we encounter in everyday life areGroup of answer choicesfood.other people.the cosmos.the earth.air.