Question

I need a little help.

Answer 1

A certain radioactive isotope has a half-life of 15 days. If one is to make a table showing the half-life decay of a sample of this isotope from 32 grams to 1 gram; list the time (in days, starting with t = 0) in the first column and the mass remaining (in grams) in the second column, which type of sequence is used in the first column and which type of sequence is used in the second column?

Answer 2

What sequences are they talking about for the two columns?

Answer 3

Are they asking me to make a whole table or just say day 0?

Answer 4

i belive they are asking for a table but i could be wrong

Answer 5

Okay so how would I do that? Would I do it like day by day until day 15?

Answer 6

I answered a question like this a while back but it was for 11 days---
this should give you the idea



Time - Mass
0 - 32 grams
11 - 16 grams
22- 8 grams
33 - 4 grams
44 - 2 grams
55 - 1 gram

1st column increasing by factor of '11' each increment
2nd column being 'halved' each increment (multiplied by factor of 0.5).

Answer 7

Oh that makes a lot of sense! Thank you!