A Critique of the Proposed National Education Policy Reform
Atoms – The Inside Story
1. Atoms – The Inside Story Class NotesTuesday, Sept. 14, 2010
2. What are atoms? Smallest ‘building blocks’ of matter Matter is anything that has mass and takes up space Most mass in an atom is contained in the middle, called the nucleus Atoms are composed of 3 different parts: Protons (+) Neutrons (0) Electrons (-)
3. Where are these particles found in the atom? Different theories and atomic models have been tested by many scientists over hundreds of years, but we now think: Protons are found in the nucleus Neutrons are found in the nucleus Electrons are probably found moving around in an area surrounding the nucleus, called the electron cloud
