Question

Will give brainilest if correct Element X decays radioactively with a half life of 15 minutes. If there are 770 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 32 grams?

Answer 1

Answer:

t = 68.83 minutes

Step-by-step explanation:

68.83 minutes to decay to 32 grams

formula

ln means natural log

time = half life * ln (remaining quantity/initial quantity) ÷ -ln2