Carbon-14 emits beta radiation and decays with a half-life (t ) of 5730 years. assume that you start with a mass of 6.00 × 10^–12 g of carbon 14. how many grams of the isotope remains at the end of three half-lives?

Explanation:

Formula used :

where,

a = amount of reactant left after n-half lives = ?

= Initial amount of the reactant =

n = number of half lives = 3

Putting values in above equation, we get:

Therefore, the amount of carbon-14 left after 3 half lives will be

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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