Electrons #1: Quantum Nature of Electrons

After watching the NOVA special in class, watch the following videos (the first video links to a playlist of 8 short videos, totaling 40 minutes) to help you understand quantum physics and how it applies to electrons.

Half-Life and Radioactive Decay Activities

Look at the following graph and run the three applets on this page to explore and learn more about radioactive decay and half-life.

Half-Life: Radioactive Decay and Exponential Curve

The first applet shows alpha decay.

The second applet shows beta decay.
The second applet shows beta decay


The

Click to Run

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The third applet shows half-life curves and how to use them to find the age of things buried in the ground.

Click to Run

Radioactive Decay and Half-Life Overview

Watch the following video to learn more about radioactive decay and how long it takes atoms to decay, known as half-life.








Watch the following video to help you understand how to do half-life calculations.

Thermochemistry -- Phase Changes (temperature only)

Run the following applet to explore how adding heat energy to a sample changes temperature, state of matter, and molecular motion.

Click to Run

Calorimetery--Calculating the Calorimeter Constant

Click on this link to watch a a short video that explains how to calculate the calorimeter constant (how "leaky" your calorimeter is when it comes to heat) using a sample problem.

http://www.chemteam.info/Thermochem/Video-calorimeter-constant-02.mov

Nuclear Chemistry -- Radiation and Radioactive Decay

Watch the following videos and click on the link below it to help learn about radioactive decay and the types of particles and radiation that are involved.









Alpha, Beta and Gamma Radiation Compared
http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/radioa7.swf

Thermochemistry Part II, the Math and the Experiments

Watch the following videos to help you understand the math sections of thermochemistry, both theoretical and experimental.

total time = 23 minutes


Enthalpy -- heat without work



Calorimetry -- heat experiments

Thermochemistry Part I, the Concepts

Watch the following videos to help you understand the aspects of thermochemistry.

total viewing time = 14 minutes


Basic Concepts and Vocabulary




Energy, Heat, and Work

Periodic Table

 Watch the following video to learn about the history of how the periodic table was developed.





  Click on the following links to go to two websites with interactive Periodic Tables.  Work with these and they will help you to understand what we need to know about the modern Periodic Table -- how it is arranged, what the different sections of it are called, and important properties of specific elements and groups of elements.

http://www.learner.org/interactives/periodic/index.html

http://www.ptable.com/#

Ernest Rutherford's Gold Foil Experiment

Click on the link below to work with an interactive animation and learn more about Ernest Rutherford's Gold Foil experiment that helped him to determine that atoms have a nucleus in the middle.


http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/ruther14.swf


Watch this video as well to help you understand the Gold Foil experiment.