A basic explanation of spin and how it relates to electrons and quantum numbers.

Observe the probable location of electrons around an atom. Trace the electrons over time to draw conclusions about where electrons are likely to be found around an atom's nucleus. How does the trace pattern relate to the electron cloud...

This lesson will define the Octet Rule and how this effects an atom's stability. It is 4 of 5 in the series titled "Octet Rule."

An exceptionally thorough resource with an amazing set of data on krypton, it chemical and physical properties, its electron configuration and its isotopes, among other things.

Excellent basic information and properties on cerium, along with electron arrangement data.

WebElements offers valuable information on iridium, with basic data, chemical and physical properties, electron arrangement and more. A helpful site.

A nice, easy to follow summary of basic properties of krypton. Good information on electron configuration as well. Site by WebElements.

Nicely presented summary of basic data on einsteinium. Complete electron configuration is shown. Site by WebElements.

WebElements offers a very nice summary of basic data on fermium, including properties and electron arrangement.

All of the elemental information about scandium that you are likely to need can be found at this extensive site. This information includes atomic number, atomic weight, group name, standard state, properties, uses, electron...

All of the elemental information about sulfur that you are likely to need can be found at this extensive site. This information includes atomic number, atomic weight, group name, standard state, properties, uses, electron configuration,...

Excellent source of information on selenium, its properties, isolation and electron configuration. The site includes pictures of selenium.

A very detailed look at the element Gallium, a member of the Boron Group.

A very detailed look at the element Indium, a member of the Boron Group.

A very detailed look at the element Thallium, a member of the Boron Group.

This site from the Purdue University provides an overview of atomic orbitals and how quantum numbers specify these orbitals. Includes a model that can be rotated and examined in 3D. Includes learning exercises and answers.

Lists the exceptions to the octet rule and provides a discussion and diagrams explaining each one. Includes clear diagrams illustrating this concept.

University of Delaware Physics Department provides this indexing page for a slide show presentation.

The University of Delaware Physics Department provides this site from a site titled "Silicon, Circuits, and the Digital Revolution," here is a series of four pages which explain the details behind how semiconductors work. An introduction...

A complete overview of Hund's rules including exceptions.

At this site from the Purdue University, the elementary subatomic particles are described and electromagnetic radiation is detailed. Includes learning exercises and answers.

This slide presentation contains a description of the octet rule, as well as many related topics.

This power point highlights the main ideas about modern atomic theory from the online textbook "An Introduction to Chemistry". Step by step instructions are given to write electron configurations and draw orbital diagrams. Also includes...

This StudyCards stack enables students to review elements present in the modern periodic table. Given the atomic number, element name, and the electronic configuration, students find the position (period and column) of the element in the...