Question

Tungsten-187 has a half life of 1.00 days. How much of a 10g sample will be left after 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, and 7 days?

Answer 1

Just divine 10 by 2 everyday
1 would be 5
2 would be 2.5
3 would be 1.75 etc.