Isotopes Presentation Assignment

Watch the Isotopes Presentation and answer the questions below. You do not have to rewrite the question, but make sure that you number the question you are answering ;-)

CLICK --> Isotopes Presentation to get to the presentation.

QUESTIONS:

1. How is it possible that more than one kind of the same element can exist? Explain in 2-3 sentences.

2. Explain the difference between isotopes of Carbon-12, Carbon-13, and Carbon-14.

3. Why do most atomic mass numbers shown in the periodic table contain decimals (they are not whole numbers)?

4. Use the Internet to find all of the isotopes of an element not discussed in the presentation and write them out. Copy/Paste the link to the website you used below.