Question

A typical amount of 99mtc injected for medical imaging is 15.0mci. convert this to decays per second, also called becquerels (bq, the si unit of activity.\

Answer 1

Answer:
`0.055* 10^(10)` Bq

Explanation:

Radioactivity is the phenomenon in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations.

Radioactivity is measured in units of curie (Ci) or becqerels (bq).

1 millicurie =
`10^(-3)` Curie

Thus 15 millicurie =
`(10^(-3))/(1)* 15=0.015` Curie

1 Curie is equal to
`3.7* 10^(10)` Bq

0.015 Curie =
`(3.7* 10^(10))/(1)* 0.015=0.055* 10^(10)` Bq

Answer 2

we are asked in the problem to convert teh unit mci or millicurie to another unit of radioactivity, becquerel. The conversion to be used in this case is 1 millicurie [mCi] = 37,000,000 becquerel [Bq] .The problem gives 15 mCi which when multiplied to 37,000,000 is equal to 5,550,000,000 bQ