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1. In this activity, we will be exploring the relationship between the amount of a radioactive substance and the rate of deca2. Pick a concentration of Barium-137 in the video player above. Under the tools icon in the upper left of the video, there1. In this section we will use the data from the videos to determine the half life of Ba137- The half life of a radioactive i

Please answer 2 3 and 4. thanks .

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o 50%. 25/ © Time for Ba to decay by 50%- 137 kyn ~ 160 seconds. also shows that The data also first data : 1696 cont 1646 fogets reacted, it means D 75%. 251. remains here the value 300 seconds, 1696 crant & 25% 411 48 ( cant it i Boo The differenc

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