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Details Description Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the second of three Science Objects in the Atomic Structure SciPack. It explores the structure-related properties that make one type of atom different from another, and looks more closely at the role of the neutron. The number of protons in the nucleus determines what an atom's electron configuration can be and so defines the element and its properties. NSTA Learning Center
The applet lists a "halflife" for each radioactive isotope. What does that mean? The halflife is the amount of time it takes for half of the atoms in a sample to decay. Halflife
What is a mole? | The Chemistry Journey | The Virtual School
Common Compound Library A searchable database of over 800 common compound names, formulas, structures, and properties. Companion Notes Hyperlinked notes and guides for first semester general chemistry. Construction Kits Flash-based kits for building chemical formulas, names, equations, and problem solutions.
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Interactives . The Periodic Table . It's Elementary . Building Elements
Chemistry Music Video 29: It's A Family Thing
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mythbusters file # 3: Walking on the water ?
Warning: Rubbing alcohol is very flammable and must be kept away from any open flames or heat. This experiment must be conducted in a well-ventilated area, preferably outdoors or in a room with open windows. Place the plastic cup inside the middle of the t-shirt. Sharpie Pen Science at Steve Spangler Science