The table below gives the percentage of a radioactive isotope of Bismuth that remains after decaying at different times.

The table below gives the percentage of a radioactive isotope of Bismuth that remains after
decaying at different times.

i). On the grid provided, plot a graph of the percentage of Bismuth remaining(Vertical axis) against
time.
ii) Using the graph determine the
i) Half- life of Bismuth isotope.
ii) Original mass of the Bismuth Isotope given that the mass that remained after 70
minutes was 0.16g.

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sharon kalunda answered the question on May 16, 2019 at 13:33

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