http://antoine.frostburg.edu/chem/senese/101/atoms/faq/are-atoms-real.shtml
http://researcher.watson.ibm.com/researcher/view_group.php?id=4245
http://resources.schoolscience.co.uk/STFC/11-14/index.html
Questions
- How do scientists know that atoms exist? Have they seen them? How?
- What is inside an atom?
- What is a molecule?
- Can we break atoms?