Question

Using the equation for decay, calculate the amount left of a radioactive sample amount N0 if the decay constant is 0.00125 seconds and the time is 180 seconds? (Hint: Your answer will not be a number. Instead, it will be a decimal or percent of the variable N0

Answer 1

The amount left of a radioactive sample amount N0 if the decay constant is 0.00125 seconds and the time is 180 seconds is 0.7999 N.

What is half-life?

The time it takes for half of the original population of radioactive atoms to decay is called the half-life. The relationship between the half-life T1/2 and the decay constant is given by T1/2 = 0.693/λ.

1. N=N0e−λt
2. given λ = 0.00125 seconds
3. t = 180 seconds
4. Now putting values.
5. N=N0e−λt = 0.799
6. N= 0.7999.

Read more about the radioactive :

brainly.com/question/2320811

#SPJ1