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The INTERNET Database of Periodic Tables

There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1300 Period Tables in the database: 

  Text Search:       


Periodic Tables from the year 2000:

2000   Adult Periodic Table
2000   Metal Crystal Structure
2000   Adobe Illustrator Shortcuts in Periodic Table Stylie
2000   Chemical Elements Pyramidal Diagram
2000   Elements Known in the Year 2000
2000   Electron Affinity
2000   Sistema Peryodico
2000   MIT Periodic Table Characters
2000   Discovery of Livermorium
2000   Jensen Article: The Periodic Law and Table
2000   Sneath's Dendtogram


Year:  2000 PT id = 99, Type = non-chem

Adult Periodic Table

An adult PT of sex (available from Amazon):

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Year:  2000 PT id = 129, Type = data

Metal Crystal Structure Periodic Table

Developed from Dr S.J. Heyes' First Year Inorganic Chemistry lecture notes (Oxford University):

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Year:  2000 PT id = 182, Type = non-chem

Adobe Illustrator Shortcuts in Periodic Table Stylie

Adobe Illustrator Shortcuts in Periodic Table Stylie:

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Year:  2000 PT id = 449, Type = formulation 3D

Chemical Elements Pyramidal Diagram

A Chemical Elements Pyramidal Diagram by Thomas Zerkov.

"The present work introduces a new arrangement of the chemical elements. Unlike the most popular existing arrangements, which are two-dimensional, this new arrangement is three-dimensional. It organizes the elements in a pyramidal structure of four levels, giving a clear spatial expression of different relations between the chemical elements. Since the three-dimensional structures are harder to perceive than the two-dimensional ones, the present work also suggests a two-dimensional table representation of the three-dimensional pyramidal diagram, where the four levels are all placed in a single plane, instead of one above the other."

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Year:  2000 PT id = 476, Type = formulation

Elements Known in the Year 2000

Elements known in the year 2000, taken from this Wikipedia page:

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Year:  2000 PT id = 630, Type = data

Electron Affinity

In chemistry and atomic physics, the electron affinity of an atom is defined as the energy change when an electron is added to a neutral atom to form a negative ion:

M  +   e    —>    M   +   energy:

Kabbalistic

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Year:  2000 PT id = 707, Type = misc

Sistema Peryodico

A famous Spanish periodic table with puns/jokes on the element names. (Click here for a larger version.)

This is one for Spanish speaking chemists!

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Year:  2000 PT id = 757, Type = misc

MIT Periodic Table Characters

Eric Scerri writes:

"This apparently hangs on a wall of Building 6 at MIT. I have identified the people around the old-school periodic table, they are (from left to right): Zosimos, Ko Hung, Jabir, Boyle, Lomonosov, Lavoisier, Berzelius, Wohler, Cannizzaro, Berthelot & Mendeleev":

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed
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Year:  2000 PT id = 896, Type = element

Discovery of Livermorium

Lv

Livermorium, atomic number 116, has a mass of 293 au.

Synthetic radioactive element.

Livermorium was first observed in 2000 by Y. Oganessian et al.

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Year:  2000 PT id = 972, Type = review

Jensen Article: The Periodic Law and Table

From William (Bill) Jensen's website, an article: The Periodic Law and Table (written for Britannica on Line, Encyclopaedia Britannica: Chicago, lL, 2000, but never published. ).

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Year:  2000 PT id = 1240, Type = formulation data

Sneath's Dendtogram

Sneath, P., Numerical Classification of the Chemical Elements and Its Relation to the Periodic System. Foundations of Chemistry 2, 237–263 (2000).

Abstract: "A numerical classification was performed on 69 elements with 54 chemical and physicochemical properties... Only 15 properties were scorable for the noble gases, but despite the paucity of properties reflecting chemical reactivity, analysis of the 69 elements on these properties still showed the major features seen from the full set."

Sneath writes:

"The UPGMA tree shows three major clusters at the 70% similarity level:

1. Hydrogen, noble gases, reactive nonmetals and halogens.
2. A large cluster of less reactive metals and metalloids, with a few nonmetals.
3. A cluster of highly reactive metals.

These major clusters are almost consistent with the blocks based on electron shells. The first cluster belongs to the p-block plus hydrogen. The second belongs to the d-block together with a few p-block elements. The third consists of the s-block plus aluminum from the p-block.

Cluster 1: There are three subclusters. 1a. This contains hydrogen and the noble gases."

Thanks to René for the tip!

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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