cl4 undergoes first order radioactive decay. For simplicity let its half-life be 6,000 years. The disintegration rate, measured as counts/sec by a radiation detector, is proportional to the amount of C1ª remaining. Suppose a sample which originally showed 8,000 counts/sec now shows 1000 counts/sec. What is the age of the sample? Note that you can't put a comma in your answer. years

The half life for the radioactive decay of potassium-40 to argon-40 is 1.26 × 10⁹ years. Suppose nuclear chemical analysis shows that there is 0.303 mmol of argon-40 for every 1.000 mmol of potassium-40 in a certain sample of rock. Calculate the age of the rock. Round your answer to 2 significant digits. years □x₁0 X 5

The half life for the radioactive decay of potassium-40 to argon-40 is 1.26 x 10 years. Suppose nuclear chemical analysis shows that there is 0.374 mmol of argon-40 for every 1.000 mmol of potassium-40 in a certain sample of rock. Calculate the age of the rock. Round your answer to 2 significant digits. years

A radioisotope “X” has a half-life of 2.5 years. Determine (to the nearest 0.1 mg) how much of a 1000 mg sample of “X” remains after a period of 17.5 years.

I 3. All radioactive decay processes follow first-order kine - ics. What does this mean? What happens to the rate of radioactive decay as the number of nuclides is halved? Write the first-order rate 1 w and the integrated first order rate law. Define the terms in each equation. What is the half-life equation for radioactive decay processes? How does the half-life depend on how many nuclides are present? Are the half-life and rate constant k directly related or inversely related?

3. The isotope 212Bi has a half-life of 1.01 yr. What mass, in mg, of a 2.00 mg sample will remain after 3.75 x10³ hrs? a. First calculate the rate constant. b. Now use the initial mass to determine the mass after 3.75x10³ hrs.

Can someone please help with question 8a and b

In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon. The half-life of C-14 is 5730 years. A charcoal sample from an archaeological site has a C-14 disintegration rate of 7.5 atoms per minute per gram of carbon. Estimate the age of this sample in years. Please report an integer.

The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 × 10¹⁰ Suppose nuclear chemical analysis shows that there is 0.433 mmol of strontium-87 for every 1.000 mmol of rubidium-87 in a certain sample of rock. Calculate the age of the rock. Round your answer to 2 significant digits. years x10 X S years.

The 1st-order decay of a particular radioactive element has a half-life of 1.234 days. How many grams of radon remain after 5.67 days if the sample initially weighs 891.0 grams? Group of answer choices 307 508 36.9 0.815 76.3