WebElements Periodic Table

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written by Mark J. Winter

This is an extensive periodic table of the elements on the World-Wide Web. Inculded is extensive information about elements and compounds. A simpler "Scholar Edition", aimed at students, is also included.

https://www.webelements.com/

Subjects	Levels	Resource Types
General Physics - Properties of Matter Modern Physics - Atomic Physics - Condensed Matter Other Sciences - Chemistry	- Graduate/Professional - Lower Undergraduate - High School - Informal Education - Upper Undergraduate	- Reference Material - Dataset

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- Researchers - Learners - Educators	- text/html - application/flash - audio/realaudio - image/gif - image/jpeg	Currently 5.0/5 Rated 5.0 stars by 1 person Want to rate this material? Login here!

Access Rights:: Free access
Restriction:: Has a copyright or other licensing restriction.
Keywords:: chemical properties, compounds, crystal structure, electronic structure, periodic table, physical properties
Record Creator:: Date Metadata Instance was created July 15, 2003 by Waylon Flinn
Record Updated:: August 23, 2016 by Lyle Barbato
Other Collections:: The Nucleus

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AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4D. The Structure of Matter

9-12: 4D/H8. The configuration of atoms in a molecule determines the molecule's properties. Shapes are particularly important in how large molecules interact with others.

AAAS Benchmark Alignments (1993 Version)

4. THE PHYSICAL SETTING

D. The Structure of Matter

4D (6-8) #1. All matter is made up of atoms, which are far too small to see directly through a microscope. The atoms of any element are alike but are different from atoms of other elements. Atoms may stick together in well-defined molecules or may be packed together in large arrays. Different arrangements of atoms into groups compose all substances.
4D (6-8) #5. Scientific ideas about elements were borrowed from some Greek philosophers of 2,000 years earlier, who believed that everything was made from four basic substances: air, earth, fire, and water. It was the combinations of these "elements" in different proportions that gave other substances their observable properties. The Greeks were wrong about those four, but now over 100 different elements have been identified, some rare and some plentiful, out of which everything is made. Because most elements tend to combine with others, few elements are found in their pure form.
4D (6-8) #6. There are groups of elements that have similar properties, including highly reactive metals, less-reactive metals, highly reactive nonmetals (such as chlorine, fluorine, and oxygen), and some almost completely nonreactive gases (such as helium and neon). An especially important kind of reaction between substances involves combination of oxygen with something elseÑas in burning or rusting. Some elements don't fit into any of the categories; among them are carbon and hydrogen, essential elements of living matter.
4D (9-12) #1. Atoms are made of a positive nucleus surrounded by negative electrons. An atom's electron configuration, particularly the outermost electrons, determines how the atom can interact with other atoms. Atoms form bonds to other atoms by transferring or sharing electrons.
4D (9-12) #9. The rate of reactions among atoms and molecules depends on how often they encounter one another, which is affected by the concentration, pressure, and temperature of the reacting materials. Some atoms and molecules are highly effective in encouraging the interaction of others.

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<a href="https://psrc.aapt.org/items/detail.cfm?ID=199">Winter, Mark. WebElements Periodic Table.</a>

AIP Format

M. Winter, , WWW Document, (https://www.webelements.com/).

AJP/PRST-PER

M. Winter, WebElements Periodic Table, <https://www.webelements.com/>.

APA Format

Winter, M. (n.d.). WebElements Periodic Table. Retrieved April 28, 2025, from https://www.webelements.com/

Chicago Format

Winter, Mark. WebElements Periodic Table. https://www.webelements.com/ (accessed 28 April 2025).

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Winter, Mark. WebElements Periodic Table. 28 Apr. 2025 <https://www.webelements.com/>.

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@misc{ Author = "Mark Winter", Title = {WebElements Periodic Table}, Volume = {2025}, Number = {28 April 2025}, Year = {} }

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%A Mark Winter %T WebElements Periodic Table %U https://www.webelements.com/ %O text/html

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%0 Electronic Source %A Winter, Mark %T WebElements Periodic Table %V 2025 %N 28 April 2025 %9 text/html %U https://www.webelements.com/

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WebElements Periodic Table:

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