hard Science

Which scientist is credited with the discovery of radioactivity?

Quiz Options

Marie Curie
Ernest Rutherford
Henri Becquerel
James Chadwick

Explanation

Henri Becquerel discovered radioactivity in 1896, which led to Marie Curie and Pierre Curie further investigating the phenomenon.

CuizIN — Free Online Quiz Game | Play & Learn

Test your knowledge across 15,000+ trivia questions covering history, science, geography, sports, entertainment, literature, mythology, and more. Play free, earn points, climb the leaderboard.

Start Playing → · Create Account · How to Play

Browse Quiz Categories

Popular Sections

Why Play CuizIN?

100% free to play — no payment required
15,000+ trivia questions across 30+ categories
Daily streak bonuses and a global leaderboard
Detailed explanations after every answer
Mobile-friendly with offline support