Acertain radioactive isotope decays according to the formula a = a0e − 0.0242 t , where a0 is the amount of the isotope initially present, and a is the amount present after t years. approximately how many years will have to pass before only 50 % of a particular quantity of the isotope remains. your answer will be the half-life of the isotope. round to 3 decimal places.

Explanation:

1) Radioactive decay equation (given):

2) Half-life of the isotope:

As stated the concentration after the half-life time is 50%. So, you can use A = A₀ / 2 and solve for t:

Thus, the answer, rounded to 3 decimal places as requested, is 28.642 years, and that is the half-life of the isotope.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.