blakeodonnal blakeodonnal 04-05-2021 Chemistry contestada 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