sue moore

This page lists questions and answers that were posted by visitors named sue moore.

Questions

The following questions were asked by visitors named sue moore.

cobalt-60 has a half-life of 5.26 years, how much of a 500 gram sample will be left after 21 years

sodium-24 has a half life of 15 hours,how much of a 50 gram sample will be left after 60 hours

a scientist found a fossilized bison. using Carbon-14 dating, she found that the fossil was about 45,840 years old. Carbon-14 has a half-life of 5730 years. how many half-lives have passed?

Answers

The following answers were posted by visitors named sue moore.