Start with a hypothetical sample of 1,024 atoms of a radioactive isotope. Fill out the following table:

Question

# of half lives:0 Remaining Parent: 1024 Daughter: 0 Simplified P:D Ratio -
1
2
3
4
5
6
7
8
9
10

Answer 1

1024 is 2^10

after each half-life , half of the parent isotope has become the daughter

1 ... 512 ... 512 ... 1
2 ... 256 ... 768 ... 1/3
3 ... 128 ... 896 ... 1/7
etc.