Henri Becquerel Discovered This Property When Some Uranium Darkened His Photographic Plate

Jeopardy Answer

The contestants made their wages and in a moment I will give you the final Jeopardy answer. You have thirty seconds to answer it in the form of a question. Make sure it is in the form of a question. Here we go, the category is ROCKS & MINERALS. And the Jeopardy answer is
Henri Becquerel Discovered This Property When Some Uranium Darkened His Photographic Plate

Jeopardy Question

The correct question is RADIOACTIVITY

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Background

This answer is categorized as ROCKS & MINERALS. We last updated this Jeopardy answer, clue, and question on _DATE. We were able to source this question from Jeopardy! World Tour.

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