The properties of an atom's electron configuration are described by four quantum numbers: n, l, m, and s. Here's what these quantum numbers mean.
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The transistor was an influential little invention that changed the course of history in a big way for computers and electronics.
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Learn about the basic model and properties of atoms, including the parts of an atom and their charge.
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This easy-to-use chart shows the periodic table trends of electronegativity, ionization energy, atomic radius, metallic character, and electron affinity.
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Have you ever wondered why atoms form chemical bonds with other atoms? Here's the scientific reason and an explanation of stability.
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Drawing Lewis structures can be a straightforward process if the proper steps are followed. These instructions will show how to do it.
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An electron transport chain is a group of protein complexes and electron carrier molecules that produce energy in the form of ATP.
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Atoms are the smallest units of each element and the building blocks of matter. Here's how to make an atom model using common materials.
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This is the ionization energy definition in chemistry as well as an explanation of its trend in the periodic table.
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The octet rule is used to predict compound molecular structures. Here are the exceptions to the octet rule and how it applies to Lewis structures.
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This ten question practice test will test your knowledge of the structure of atoms, isotopes, and monatomic ions.
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Explore the various types of electronic and mechanical markers available and learn the pros and cons of each.
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Learn what a Lewis structure is in chemistry, see an example, and learn how to make an electron dot diagram.
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Understand what a semiconductor is and how they came about, as well as the semiconductor's role in the history of electronics.
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Find out more about electron domains, how they affect the geometry of molecules, and how they help chemists predict the likely shape of chemical bonds.
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Here's what ionization energy is and the trends in ionization energy you can expect to see for elements on the periodic table.
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11th-grade chemistry covers all the material listed here, but this is a concise review of what you need to know to pass a cumulative final exam.
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Stable atoms have as many electrons as they do protons. How do these electrons orient themselves around the nucleus?
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Learn about the periodic properties or trends in the periodic table of the elements. This is an explanation of periodicity and a quick summary of trends.
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