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