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Chemistry, 16.07.2019 10:00 naturallyjada33

Why was becquerel’s experiment a first step in discovering radioactivity? a-it showed that a substance could phosphoresce when it was not exposed to light. b-it showed that the substance that was used by becquerel could phosphoresce. c-it showed that a substance could constantly emit radiation even if it was not exposed to light. d-it showed that a substance emitted radiation when it was exposed to light.

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