The mass of chromium left after 3 months is 3.186g
Data;
This is used to calculate the disintegration rate of a radioactive substance and the formula is given as
[tex]N = N_oe^-^ \lambda ^t[/tex]
Let's substitute the values and solve for the amount left after 3 months.
[tex]N = N_o e^-^ \lambda ^t\\N = 64 * e^-^(^3^*^1^)\\N = 64 * 0.049787\\N = 3.186g[/tex]
The mass of chromium left after 3 months is 3.186g
Learn more on radioactivity here;
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