What type of process is radioactive decay?

What is half-life of a radioactive isotope?

How else can half-life of a radioactive isotope be defined?

Why do we use large sources to measure half-life?

What type of graph will an activity vs time graph be?

What type of graph will a count rate vs time graph be?

What type of graph will a non-radioactive nuclei vs time graph be?

What is the range of half-life of radioactive isotopes?

If it takes 2 days for activity to drop from 10,000 Bq to 2,500 Bq what is the half life?

If it takes 6000 years for activity to drop from 100,000 Bq to 50,000 Bq what is the half life?

If it takes 160 years for activity to drop from 32,000 Bq to 2,000 Bq what is the half life?

The half-life of a plutonium isotope is 5 years. How much of 100 g of plutonium will be left after 15 years?

How do we express the percentage remaining after 2 half lives?

How do we express the percentage remaining after 3 half lives?

What is the half-life of a sample where activity drops from 1,200 Bq to 300 Bq in 10 days?

What is the half-life of a sample where activity drops from 1,200 Bq to 600 Bq in 6 days?

What is the half-life of a sample where activity drops from 1,200 Bq to 75 Bq in 4 days?

What is the half-life of a sample where activity drops from 10 Bq to 1.25 Bq in 9 days?

What is the half-life of a sample where activity drops from 2 Bq to 0.02 Bq in 21 days?