Tuesday
July 22, 2014

Homework Help: science

Posted by Amy on Thursday, January 15, 2009 at 12:40pm.

Hello! I need help with some Science things.

1. Where is a good place to find a picture that describes radioactive decay, fussion and fission/

4. Scientists use the amount of radioactive isotopes found in rocks and fossils to calculate their ages. This process is called_____

5. Atoms of an element that contain the same number of protons and a diffrent number of neutrons are__________

6.A(N)_____ involves the particles found in the nuclues of an atom. It changes one element into another element.

7.Radioactive elements can be used to destroy unhealthy cells like cancer cells in the process called_______

Thank you very much!

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