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Chemistry, 09.12.2020 20:20 ogdeekin

I NEED HELP ASAP IN ON TIMER Becquerel’s experiment consisted of four steps.

1. Get a sample of a uranium salt.
2. Expose the salt to sunlight.
3. Expose photographic plates to the salt.
4. Develop the plates.

A change in which step led to Becquerel’s discovery of radioactivity?
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2
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I NEED HELP ASAP IN ON TIMER Becquerel’s experiment consisted of four steps.

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