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- Learn how to determine the atomic and mass numbers of an atom.
- Discuss early atomic theory.
- Describe the relationship between isotopes and average atomic mass.
- Understand how to use Avogadro's number to count atoms.
- Write electron configurations for any element.
- Examine the rules of atomic structures.
- Differentiate between diamagnetism and paramagnetism.
- Find the four quantum numbers for any electron in an atom.
- Understand how the Bohr model relates to atomic spectra.
- Become familiar with the Heisenberg uncertainty principle.
- Explain the de Broglie hypothesis.
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. Atomic Number and Mass Number
Atoms are the basic building blocks of everything around you. In order to really understand how atoms combine to form molecules, it's necessary to be familiar with their structure. In this lesson, we'll dissect atoms so we can see just what really goes into those little building blocks of matter.
3. 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.
4. Isotopes and Average Atomic Mass
When you drink a glass of water, you are actually drinking a combination of heavy water and light water. What's the difference? Is it harmful? This video will explain the difference between the two types of water and go into detail on the significance of the different isotopes of elements.
5. Avogadro's Number: Using the Mole to Count Atoms
How do we move from the atomic world to the regular world? Because atoms are so tiny, how can we count and measure them? And what do chemists celebrate at 6:02 AM on October 23rd each year? In this lesson, you will be learning how Avogadro's number and the mole can answer these questions.
6. 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.
7. Photoelectron Spectroscopy: Description & Applications
In this video, you will learn about the useful lab technique Photoelectron Spectroscopy (PES). Additionally, you will study graphs made from PES data and interpret their meaning to ultimately understand how data from PES can be used to determine electron configurations and describe atomic structure.
8. Atomic Structures: Pauli Exclusion Principle, Aufbau Principle & Hund's Rule
This lesson discusses the three main rules that govern how electrons fit in the atomic structure by filling the shells, subshells, and orbitals. We will also review the basics of quantum numbers before learning these principles.
9. Diamagnetism & Paramagnetism: Definition & Explanation
In this lesson, we learn more about electron configuration through the concepts of diamagnetism and paramagnetism. We will review electron structure in an atom, and define diamagnetism and paramagnetism.
10. Four Quantum Numbers: Principal, Angular Momentum, Magnetic & Spin
Each electron inside of an atom has its own 'address' that consists of four quantum numbers that communicate a great deal of information about that electron. In this lesson, we will be defining each quantum number and explaining how to write a set of quantum numbers for a specific electron.
11. 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.
12. Coordinate Covalent Bond: Definition & Examples
In this lesson, learn about coordinate covalent bonds and the compounds that contain them. The lesson will also offer an understanding of how to interpret formulas of coordination compounds and deduce the number of coordinate covalent bonds present.
13. Deuterium: Definition, Mass & Density
Deuterium is a specific type of hydrogen atom. Also known as 'heavy hydrogen' this form of hydrogen contains an extra particle, giving it a higher mass and density than most hydrogen atoms.
14. Heisenberg Uncertainty Principle: Definition & Equation
The Heisenberg uncertainty principle is one of the core concepts in quantum mechanics. In this lesson, we define the uncertainty principle and learn more about its implications for physical science.
15. The de Broglie Hypothesis: Definition & Significance
The de Broglie hypothesis states that particles of matter can behave as both waves and particles, just like light. In this lesson, we'll learn the basics of the de Broglie hypothesis and how it related to other theories released at the same time.
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