he half life of argon is 10 years. A fossil originally had 40g of argon. The fossil was discovered 10 years after it was buried. How much argon does the fossil have left?

Answer 1

The half-life of argon is 10 years, which means that after 10 years, half of the original amount of argon will remain.

Initially, the fossil had 40 grams of argon. After one half-life (10 years), the amount of argon left would be:

\[ \text{Remaining argon} = \frac{40 \text{ g}}{2} = 20 \text{ g} \]

So, after 10 years, the fossil would have 20 grams of argon left.