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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?
1
2
3
4

User Minj
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2 Answers

2 votes

Answer:

step 2 fs

Step-by-step explanation:

User Tajmahal
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2 votes

Answer:

it's step 2

Step-by-step explanation:

User Lluis Gerard
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