Difference between revisions of "Periodic table of the elements"
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(Invoking the three revert rule: please discuss on talk before reverting or threatening to ban. I would like to keep this civil, there is absolutely no reason beliefs should be stated as facts) |
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| + | :''This page is over '''elements'''. Elements are a key component of the [[atom|Atomic theory]]. Atoms are theory, '''not a fact'''. Information presented in this article should be critically interpreted and taken with an open mind. There are true challenges to this debated theory including the [[intelligent matter]] theory''. | ||
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The '''periodic table of the elements''' is a diagrammatic tool to illustrate the scientific [[theory]] of [[periodicity]] in [[chemistry]], in which the [[element]]s have similar properties based on their position on the table. For example, the elements on the left of the table are all [[metal]]s. The table has a lot of predictive power, although there are many exceptions to the periodic properities. | The '''periodic table of the elements''' is a diagrammatic tool to illustrate the scientific [[theory]] of [[periodicity]] in [[chemistry]], in which the [[element]]s have similar properties based on their position on the table. For example, the elements on the left of the table are all [[metal]]s. The table has a lot of predictive power, although there are many exceptions to the periodic properities. | ||
Revision as of 20:47, October 8, 2007
- This page is over elements. Elements are a key component of the Atomic theory. Atoms are theory, not a fact. Information presented in this article should be critically interpreted and taken with an open mind. There are true challenges to this debated theory including the intelligent matter theory.
The periodic table of the elements is a diagrammatic tool to illustrate the scientific theory of periodicity in chemistry, in which the elements have similar properties based on their position on the table. For example, the elements on the left of the table are all metals. The table has a lot of predictive power, although there are many exceptions to the periodic properities.
The periodic table was first developed by Russian chemist Dimitri Mendeleev. Its layout accurately arranges elements by their electron configuration, atomic number, and chemical properties. Using the structure he created, Mendeleev predicted the existance and properties of several yet-undiscovered elements; when those elements were discovered, his estimates proved to be quite accurate.
