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oee [108]
4 years ago
5

What important result did Becquerel observe when he placed the uranium salt crystals and unexposed photographic film in a drawer

?
-The crystals phosphoresced within the drawer and exposed the film.
-The crystals did not phosphoresce within the drawer but did expose the film.
-The crystals phosphoresced within the drawer but did not expose the film.
-The crystals did not phosphoresce within the drawer and did not expose the film.
Chemistry
2 answers:
vovangra [49]4 years ago
7 0

The correct answer is "The crystals did not phosphoresce within the drawer but did expose the film."

Becquerel  is credited to have discovered radioactivity. Becquerel was studying the properties of x-ray using naturally fluorescent minerals. Uranium shows radioactive decay. It is the high energy invisible radiation from uranium that exposed the photographic film.

nexus9112 [7]4 years ago
4 0
<span>B) The crystals did not phosphoresce within the drawer but did expose the film</span>
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