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  • Topics
    • Organic Chemistry
  • Practice Problems
  • Study Guides
  • Quizzes
    • Solutions
  • CS Benefits
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Electronic Structure of Atoms

Orbital Diagrams

by Dr. S. Gevorg
oxygen fluorine neon configuration orbital diagram

In orbitals diagrams, the orbitals are shown as boxes, and the electrons in them as arrows pointing up or down. Each box represents one orbital, and each arrow indicates one electron. This is a way of showing the electron configuration … Read more

Categories Electronic Structure of Atoms Leave a comment

Electron Configurations of Ions

by Dr. S. Gevorg
Electron Configuration of Main Group Cations

In the previous post, we talked about electron configurations, what they show, how to read, and how to write them based on energy levels and sublevels. As a reminder, electron configurations show the number and location of electrons in an … Read more

Categories Electronic Structure of Atoms Leave a comment

Bohr Model of the Hydrogen Atom

by Dr. S. Gevorg
Bohr Model and Emission Spectra

In the previous post, we discussed the nature of light and how the sunlight or the light from an ordinary light bulb (white light) contains a mixture of almost all the colors in the rainbow. This can be confirmed by … Read more

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Energy, Wavelength, and Frequency Practice Problems

by Dr. S. Gevorg
wavelength energy frequency practice

In these practice problems, we will go over examples of determining the wavelength, frequency, and energy of light, calculating the number of photons in a laser pulse based on the energy, understanding the correlation between the energy and wavelength and … Read more

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Electron Configurations

by Dr. S. Gevorg
The Orbital Map of Periodic Table

Electron configurations tell us the number and location of electrons in an atom or an ion. Let’s first write a simple electron configuration and see what each letter and number indicate. For example, hydrogen has an electron configuration of 1s1. … Read more

Categories Electronic Structure of Atoms Leave a comment
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