question 4 of 10\nthe half - life of cesium - 134 is 2.06 years. if you start with 24 atoms of cesium - 134…
question 4 of 10\nthe half - life of cesium - 134 is 2.06 years. if you start with 24 atoms of cesium - 134 and wait 2.06 years, how many atoms of cesium - 134 will you have left?\na. 24 atoms\nb. 12 atoms\nc. 48 atoms\nd. 6 atoms
Answer
Explanation:
Step1: Recall half - life concept
The half - life is the time it takes for half of a radioactive substance to decay.
Step2: Calculate remaining atoms
We start with 24 atoms. After one half - life (2.06 years in this case), the number of remaining atoms is $24\times\frac{1}{2}=12$.
Answer:
B. 12 atoms