Question

7 multiple choice 1 point element x has a half - life of 50 years, a fossil with element x’s age was found to be 100 years old. how many half lives have gone by? (you might need to use the online calculator to help with this question.) 1 3 6 2

Explanation:

Step1: Recall the formula for half - life count

The number of half - lives ($n$) is calculated by the formula $n=\frac{\text{Total time passed}}{\text{Half - life of the element}}$.

Step2: Substitute the given values

We know that the total time passed (age of the fossil) is 100 years and the half - life of Element X is 50 years. Substituting these values into the formula, we get $n = \frac{100}{50}$.

Step3: Calculate the result

$\frac{100}{50}=2$.

Answer:

2 (corresponding to the option with value 2)