Web Elements
Web Elements Periodic Table: Sulfur
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,...
Encyclopedia of Earth
Encyclopedia of Earth: Periodic Table: Krypton
Information about the element, Krypton, atomic number 36. Covers physical and atomic properties, how abundant it is on the Earth, how it was discovered, uses, and health effects from exposure.
![Texas Gateway: Atoms, Elements and the Periodic Table: The Atomic Model [Pdf] PPT](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Texas Gateway: Atoms, Elements and the Periodic Table: The Atomic Model [Pdf] PPT")
Texas Education Agency
Texas Gateway: Atoms, Elements and the Periodic Table: The Atomic Model [Pdf]
A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...
Scholastic
Scholastic: Study Jams! Science: Matter: Atoms: Protons, Neutrons, Electrons
A video and a short quiz on the parts of an atom, the periodic table, and molecules.
Science Education Resource Center at Carleton College
Serc: Atoms and Molecules
As part of the introduction to the Periodic Table of the Elements, students will be introduced to the idea of atoms, molecules, and chemical reactions.
Other
The Third Millenium Online: The Carbon Family
The five elements of the Carbon family are briefly discussed here, with links to further information about each.
Educaplus (Jesús Peñas Cano)
Educaplus: Elementos Quimicos
Learn about the different chemical elements of the periodic table with these interactive activities.
Chem Tutor
Chem Tutor: Atomic Structure: Atomic Weights and Atomic Numbers
This lesson explains many basic concepts of atomic structure. It starts with atomic mass and number and then works up to more sophisticated information on electron configuration and how each element fits into the Periodic Table.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Chemical Fact Sheet: Neodymium
Thorough summary of information on neodymium, its properties and uses. Good resource for this individual element.
Sophia Learning
Sophia: Identifying Valence Electrons
A slide show presentation which demonstrates how to identify the number of valence electrons an element has based on its location on the periodic table.
Simon Fraser University
Chem1 Virtual Textbook: The Limits of Classical Physics
Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the limits associated with classical physics. Topics covered include light and heat with additional information...
Web Elements
Web Elements Periodic Table: Bromine
An excellent site with a vast amount of information on bromine and its properties.
Science Struck
Science Struck: Inner Transition Metals
Discusses the organization of the periodic table into periods and groups, then looks at where the Lanthanoids and Actinoids are situated, and their properties.
Frostburg State University
General Chemistry Online: History of Chemistry
A compilation of frequently asked questions in the world of chemistry. Look for answers about atomic theory, periodic table, and Lavoisier in this FAQ.
Tom Richey
Slide Share: Atomic Structure
Slideshow looking at the history of models of the atom, including those proposed by John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick. Discusses subatomic particles, including the numbers of protons, neutrons,...
Web Elements
Web Elements Periodic Table: Chromium
A very good summary of the key data and chemical and physical properties of chromium.
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