Khan Academy
Khan Academy: Noble Gas Configuration
An explanation of how to write electron configurations for other elements using the Noble gas configuration method. [6:47]
Khan Academy
Khan Academy: Electron Configurations 2
An explanation of identifying the electron configurations of the D-block elements. [10:18]
Khan Academy
Khan Academy: Electron Configurations for the First Period
An introduction to the aufbau and Pauli Exclusion principles and orbital notation. [6:22]
Khan Academy
Khan Academy: Electron Configurations for the Second Period
Introduction to Hund's rule. Shows quantum numbers for all second period elements. [12:12]
Khan Academy
Khan Academy: Electron Configurations for the Third and Fourth Periods
Noble gas notation is used to write the electron configurations of the elements in the third and fourth periods. [13:08]
Khan Academy
Khan Academy: Electron Configuration for D Block Elements
Introduction to rules for electron configurations of d-block elements. Relative reactivity and energy of 4s and 3d electrons also discussed.
Khan Academy
Khan Academy: Electron Configurations in the 3d Orbitals
A review of the electron configurations and orbital notations with a focus on K, Ca, and Sc. [12:33]
Khan Academy
Khan Academy: Electron Configurations for F Block Element Nd
An explanation of various aspects of the f-block element Nd that includes, location on Periodic table, electron configuration shorthand based on Xe, and the full electron configuration. [5:56]
Khan Academy
Khan Academy: Paramagnetism and Diamagnetism
Explanation of how paired and unpaired electrons can create different magnetic forces based on the electron configurations. [8:04]
Khan Academy
Khan Academy: Groups of the Periodic Table
An explanation of groups on the Periodic Table and their characteristics. [8:19]
Khan Academy
Khan Academy: Counting Valence Electrons for Main Group Elements
Learn how the group number relates to the number of valence electrons in the main group elements on the Periodic Table. [8:18]
Khan Academy
Khan Academy: The Periodic Table Transition Metals
an explanation of the electron configuration of the transition metals on the Periodic Table. [5:33]
Khan Academy
Khan Academy: Valence Electrons and Bonding
An explanation of how the amount of electrons in the outermost shell of an atom designates the reactivity to other elements. [10:57]
Khan Academy
Khan Academy: Atomic and Ionic Radii
An explanation of the sizes of different atoms due to the number of electrons that are orbiting in energy shells. [11:25]
Khan Academy
Khan Academy: Ionization Energy Trends
Learn how cations and anions are formed by gaining or losing electrons. Ionization energy relates to the ability of an electron to leave or join an atom.
Khan Academy
Khan Academy: First and Second Ionization Energy
An explanation of the reasoning why there is such a large difference between first and second ionization energies. [7:34]
Khan Academy
Khan Academy: Electron Affinity
Electron affinity is defined. Electron affinities of various elements are compared. [11:39]
Khan Academy
Khan Academy: Electronegativity
Electronegativity is defined and compared to electron affinity. Trends based on groups and periods are also explored. [9:54]
Khan Academy
Khan Academy: Metallic Nature
Explaining the properties of metals using the electron sea model. [9:28]
Khan Academy
Khan Academy: Electronegativity and Bonding
Explanation of how differences in electronegativity effect chemical bonding. Bonds are classified by various bonding types.
Khan Academy
Khan Academy: Ionic, Covalent, and Metallic Bonds
An introduction to different types of chemical bonds.
Khan Academy
Khan Academy: Electronegativity
Learn the difference between electronegativity and electron affinity. Group and period trends are also discussed in relation to atomic radii. [9:54]
Khan Academy
Khan Academy: Electronegativity and Bonding
The Pauling Scale is used to understand bonding due to electronegativity. Bond types are classified. [11:39]
