Physics question 10 points for first answer (partial answers are gine just answer whatever you know)?

Question

1. Forms of elements that give off matter and energy are called ___________.

2. These elements decay at a fixed rate, this fixed rate is called its __________.

3. This rate can be used to calculate the age of a rock sample in a process
known as _______________________.

4. One element, ____________, has a half-life of 4.5 billion years and so can
be used to date very old rocks.

5. To do this, we measure the ratio of radioactive element remaining to the
amount of transformed element, known as the ________________.

6. For uranium, this transformed element is an element called ____________.

7. Most radioactive dating is done on __________ rock.

8. What is the fraction of a radioactive element left after four half-lives?

9. What is the fraction of an end product would be left after three half-lives?

10. Carbon-14 has a half-life of 5730 years. Uranium has a half-life of 4.5
billion years.

a. Which would be most useful in dating a rock sample 600 mill

Answer 1

1 is radioactive, 3 is dating, 5 is carbon, 8 is 6.25, 10 is you cant use uranium to date a rock. you can still use the carbon 14

Answer 2

Go read your book!

Fill in the blank is easy enough without asking for help. The answers are usually spelled out specifically in the reading.

Answer 3

Doing your homework for you would make you a stupid person. Do it yourself.

Answer 4

You need to do your own homework.

Answer 5

this is all simple chemistry. google it.

Answer 6

first answer me!