Welcome to Chemistry. I can't fully express how excited I am to be facilitating your journey through the wonders and beauty of Chemistry. We will work hard in Chemistry but we will also have a lot of fun. Together we can both be successful - you as a student and me as a teacher. It is my hope that you leave the class with a strong understanding of the fundamentals of Chemistry but more importantly you have an appreciation for what it shows you about the world and how you can take care of it.
Chemistry looks at your world at a level that is often unseen. The existence of particles is inferred from evidence that they leave behind during the very brief time these particles are in existence. You will work with substances in quantities that are large enough to measure but you will not see the individual particles that make up the sample. When we study these particles we will work with models that are designed using data generated on a macroscopic level to describe what we can't observe directly. We will use concepts from the other sciences and math to predict and describe the behavior of these unseen particles.
It is also my hope that you learn and then know that truth is not only found in those things that are observable - concrete. The beauty and complexity of the world as seen through the lens of Chemistry gives us insight into the nature of its creator. This knowledge along with revealed truth calls us to a life that is lovingly responsive to all creation but most importantly to its creator.
The atomic model above describes several particles and their relationships to one another. The actual size of the particles represented is infinitesimal but proportional. All elements are composed of these same particles but in different numbers and ratios which gives rise to their unique physical and chemical properties. When we attempt to observe these incredibly small entities directly, we expose them to external energy sources that alter their velocities or positions relative to one another which introduces "uncertainty" about what we are observing about them. In the end the model is our best representation of what atoms are composed of and how they are structured given our current understanding of the information/data we have. As our data changes, so will our model.