About This Chapter
MEGA Chemistry: Atomic Structure - Chapter Summary
This chapter explores MEGA Chemistry exam topics. Review its lessons in order to brush up on atomic structure and make sure you're fully prepared to answer questions on the day of the test. Once finished, you will be able to:
- Define the atom, and discuss early atomic theory
- Describe electron configurations
- Provide details about atomic spectra
- Discuss valence electrons
- Identify the groups and periods related to the periodic table
- Share the meaning of atomic and ionic radii, ionization energy and electronegativity
- Explain the diagonal relationship and metallic character
The lessons are presented as videos and full transcripts. You can explore both formats to get the most comprehensive overview of atomic structure. Feel free to gauge your comprehension of the lessons by taking self-assessment quizzes and a chapter exam.
1. The Atom
Tune into this lesson to find out what matters about matter. What exactly is an atom? And, how do the atoms that make up the elements in the periodic table differ from one another?
2. Early Atomic Theory: Dalton, Thomson, Rutherford and Millikan
Imagine firing a bullet at a piece of tissue paper and having it bounce back at you! You would probably be just as surprised as Rutherford when he discovered the nucleus. In this lesson, we are going to travel back in time and discuss some of the major discoveries in the history of the atom.
3. Electron Configurations in Atomic Energy Levels
This lesson will explain what the electrons are doing inside the atom. Tune in to find out how we specify where they are located and how this location description will help us predict an element's properties.
4. The Bohr Model and Atomic Spectra
Do you ever wonder where light comes from or how it is produced? In this lesson, we are going to use our knowledge of the electron configurations and quantum numbers to see what goes on during the creation of light.
5. Valence Electrons and Energy Levels of Atoms of Elements
The periodic table contains a wealth of information. This lesson will explain how to use it to quickly determine the most useful information about the most important electrons. We will be focusing our discussion on valence electrons and energy levels.
6. The Periodic Table: Properties of Groups and Periods
How is the periodic table like the map you used on your last road trip? In this lesson, you will be introduced to the periodic table, the road map of chemists. We will discuss how the elements are organized and how you can use this organization to identify some of their major physical properties.
7. Atomic and Ionic Radii: Trends Among Groups and Periods of the Periodic Table
Atoms are VERY tiny. How do we measure their size? This lesson will explain how the size of an atom is measured and teach you how to predict the relative size of an atom based on where it is located on the periodic table.
8. Ionization Energy: Trends Among Groups and Periods of the Periodic Table
Do you know someone who has undergone radiation as a form of cancer treatment? Have you ever thought about why X-rays have health risks? Watch the video to find out what these types of radiation are really doing to atoms, define ionization energy and identify ionization trends on the periodic table.
9. Electronegativity: Trends Among Groups and Periods of the Periodic Table
How is fluorine like a child that doesn't share his or her toys? Find out in this video on electronegativity where we will discuss group and periodic trends among the elements.
10. The Diagonal Relationship, Metallic Character, and Boiling Point
What may have once seemed like a bunch of random squares with letters in them is now shaping up to be one very organized chemistry reference. In this lesson you will discover three other trends that are found on the periodic table: the diagonal relationship, trends in metallic character, and trends in boiling point.
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Other chapters within the MEGA Chemistry: Practice & Study Guide course
- MEGA Chemistry: Scientific Research & Measurement
- MEGA Chemistry: Historical Developments & Theories
- MEGA Chemistry: Science & Society
- MEGA Chemistry: Properties of Matter
- MEGA Chemistry: Liquids, Solids & Phase Changes
- MEGA Chemistry: Gas Laws
- MEGA Chemistry: Thermodynamics
- MEGA Chemistry: Chemical Bonding
- MEGA Chemistry: Inorganic & Organic Compounds
- MEGA Chemistry: Chemical Reactions
- MEGA Chemistry: Chemical Equilibrium
- MEGA Chemistry: Acids & Bases
- MEGA Chemistry: Redox Reactions & Electrochemistry
- MEGA Chemistry: Stoichiometry & Chemical Equations
- MEGA Chemistry: Solutions
- MEGA Chemistry Flashcards