Question

After 8 days, 120 g of a 160 g sample has undergone nuclear decay.

Answer 1

Step-by-step explanation

Given that

The original mass of the sample is 160 grams

The undecayed mass of the sample is 120 grams

Time is 8 days

Follow the steps below to find the half-life

Write the formula for calculating the half-life of a sample

`\text{ N = N}_o\text{ \lparen}(1)/(2))^{(t)/(\tau)}`

Substitute the given data into the formula