9. Quantum Mechanics

Introduction to Quantum Mechanics

Quantum Mechanics - Part 1: Crash Course Physics #43

n, l, and ml are needed.

Correct, the fourth quantum number, ml, is not needed.

 The designation must include the energy level, the orbital type and orientation. 

How many quantum numbers are required to designate a particular orbital?

Introduction to Quantum Mechanics Example 1

An electron's position is described in terms of a probability distribution map.

Probability maps do describe the electron's most likely location in space.

It is not possible to specify the energy of an electron in an orbital precisely.

When an orbital is represented pictorially, the probability of finding an electron at any point on the surface is the same.

This is true and why these pictures are referred to as contours of constant probability.

A plot of the wave function squared (&#968;2) represents an orbital.

A 3-D plot of &#968;2 generates an image of the orbital.

 Review the characteristics of orbitals. 

Which of the following is false concerning orbitals?

n = 2, l = 2, ml = &#x2212;2

The value l is not possible for the given value of n.

n = 3, l = 1, ml = &#x2212;2

The value ml is not possible for the given value of l.

n = 2, l = 1, ml = &#x2212;2

n = 4, l = 2, ml = &#x2212;2

n = 1, l = 0, ml = &#x2212;1

 Review the rules that determine the allowed values of the quantum numbers. 

Which of the following is an allowed set of quantum numbers?

What are the four quantum numbers, and what does each specify?

A Beginner's Guide to Quantum Physics : Physics & Math

Quantum Mechanics and the Schrödinger Equation

Quantum Mechanical Model

Which two of the four quantum numbers determine the energy level of an orbital in a multielectron atom?

The Chemistry and Life box in Section 6.7 described the techniques
called NMR and MRI. (c) When
the 450-MHz photon is absorbed, does it change the spin of
the electron or the proton on a hydrogen atom?

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1. Intro to General Chemistry

2. Atoms & Elements

3. Chemical Reactions

4. BONUS: Lab Techniques and Procedures

5. BONUS: Mathematical Operations and Functions

6. Chemical Quantities & Aqueous Reactions

7. Gases

8. Thermochemistry

10. Periodic Properties of the Elements

11. Bonding & Molecular Structure

12. Molecular Shapes & Valence Bond Theory

13. Liquids, Solids & Intermolecular Forces

14. Solutions

15. Chemical Kinetics

16. Chemical Equilibrium

17. Acid and Base Equilibrium

18. Aqueous Equilibrium

19. Chemical Thermodynamics

20. Electrochemistry

21. Nuclear Chemistry

22. Organic Chemistry

23. Chemistry of the Nonmetals

24. Transition Metals and Coordination Compounds

[BOOK CHEM] Clutch Version

Wavelength and Frequency

Wavelength&nbsp;is the distance from one crest of a wave to another, whereas frequency is the number of waves within a second.&nbsp;

Quantum Numbers: Spin Quantum Number

The Spin Quantum Number deals with the spin of an electron within an orbital.

Speed of Light

The Speed of Light in a vacuum is related to the wavelength and frequency of a light particle.

Bohr Equation

In the Bohr Equation, the energy and wavelength a photon is related to its energy shell transitions.

Quantum Numbers: Angular Momentum Quantum Number

The&nbsp;Angular Momentum Quantum Number&nbsp;gives the shape of the atomic orbitals.

Emission Spectrum

Emission Spectra is a series of lines formed when emitted light is focused by a slit and passed through a prism. &nbsp;

The 4 Quantum Numbers provide us the coordinates to find the theoretical location of an electron.

Quantum Numbers: Nodes

A node is the region in an atom with zero electron density and where an electron is least likely to exist.

The Energy of Light

The Energy of Light&nbsp;involves the use of a new variable Planck's Constant.

Electromagnetic Spectrum

The Electromagnetic Spectrum is the different forms of radioactive energy that exists in our universe.

Heisenberg Uncertainty Principle

Heisenberg's Uncertainty Principle&nbsp;tries to explain the potential duality of an electron behaving as either a particle or wave.&nbsp;

Quantum Numbers: Number of Electrons

The Quantum Numbers can give both the quantity and location of electrons within a given atom.&nbsp;

Quantum Numbers: Principal Quantum Number

The Principal Quantum Number gives both the size and energy of an electron shell.&nbsp;

Photoelectric Effect

What happens when light strikes the surface of a metal? The Photoelectric Effect&nbsp;can help to explain that.&nbsp;

Quantum Numbers: Magnetic Quantum Number

The Magnetic Quantum Number gives the location of an electron within a specific orbital.

Bohr Model

In the Bohr Model, electrons can move up and down to different orbitals or shells based on absorbing or releasing of energy.&nbsp;

De Broglie Wavelength

The&nbsp;De Broglie Wavelength equation relates wavelength to velocity or speed.&nbsp;