timestamps

• 0:00

  Atomic Structure Introduction

• 0:31

  Molar Mass and Avogadro's Number

• 1:01

  Avogadro's Number Fun Facts

• 1:32

  Average Atomic Mass

• 2:02

  Sulfur Isotopes Overview

• 2:35

  Mass Number Explanation

• 3:05

  Calculating Neutrons

• 3:37

  Isotope Abundance

• 4:09

  Weighted Average Equation

• 4:40

  Calculating Average Mass

• 5:10

  Mass Spectrometry Graphs

• 5:41

  Recognizing Spectroscopy Graphs

• 6:43

  Mole Fun Facts

• 7:45

  Mass Number Details

• 8:48

  Molecular vs Empirical Formulas

• 9:18

  Formula Definitions

• 9:50

  Ionic vs Covalent Compounds

• 10:22

  Sulfur Dioxide Example

• 10:54

  Molar Mass Equation

• 11:28

  Empirical Formula Importance

• 12:31

  Determining Empirical Formula

• 13:34

  Empirical Formula Steps

• 14:08

  Example Calculation

• 15:10

  Moles and Ratios

• 15:42

  Molecular Formula Result

• 16:12

  Quantum Mechanics Introduction

• 16:42

  Coulomb's Law

• 17:14

  Coulomb's Law Application

• 17:47

  Electron Configurations Vocabulary

• 18:18

  Energy Levels

• 18:48

  Sublevels and Orbitals

• 19:48

  Electron Spins

• 20:20

  Orbital Shapes

• 20:51

  Sulfur Electron Configuration

• 21:53

  Periodic Table Blocks

• 22:54

  Filling Electron Configurations

• 23:58

  Photoelectron Spectroscopy

• 24:28

  PES Graphs

• 25:32

  Comparing Elements in PES

• 26:34

  PES Questions

• 27:36

  Octet Rule

• 28:06

  Valence Electrons

• 29:07

  Ions and Charges

• 29:39

  Counting Valence Electrons

• 30:41

  Ionic Charges by Group

• 31:42

  Special Ion Charges

• 32:44

  Transition Metal Ions

• 33:15

  Polyatomic Ions

• 35:51

  Periodic Trends Overview

• 36:23

  Atomic Radius Definition

• 36:54

  Electronegativity and Trends

• 37:55

  Ionization Energy Trends

• 38:59

  Energy Level Justification

• 40:02

  Nuclear Charge Explanation