ChemTable is a freeware periodic table application that runs on Palm OS® handhelds. The program is quite straightforward to use. Tapping on any of the element boxes in the periodic table will bring up a form showing a list of physical/chemical properties. You can display either element symbols or atomic numbers in the table. You can also select a subset of the elements for display (Transition Metals, Halogens, Noble Gases, etc). Only half of the periodic table can be viewed at a time. To switch sections, tap on the left or right arrow button.

The color coding for the various element categories can be changed via a Color Settings form. Simply tap on any of the colored boxes in that form to display a Pick Color dialog.

Chem Table also features an element list that can be sorted by name, symbol, or atomic number. To view element names or symbols that begin with a particular letter, enter that letter in the Graffiti input area. The list will automatically scroll to the required position.

ChemTable requires Palm OS 3.5 or later.

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v2.27 (20/01/08)

• Updated the atomic weights to IUPAC 2007 values.
• Numerous bug fixes and code optimizations.
• Improved support for localization and user customization.

v2.26 (18/01/07)

• Updated the mass numbers of radioactive elements to the latest IUPAC values.
• Added support for 240x240 resolution.
• Now runs on StyleTap®.

v2.25 (01/08/06)

• Updated the atomic weights to IUPAC 2005 values.
• The element list can now be sorted by name, symbol, or atomic number.

v2.23 (25/07/05)

• Added isotope abundances (IUPAC 1997).
• Revised the electron affinity data (Values are from the CRC Handbook of Chemistry and Physics, 80th Edition).
• Improved support for grayscale devices.

v2.22 (30/07/04)

• Added a mode selection popup to the top right corner of the periodic table and element list forms.
• Renamed Unununium (Element 111) to Roentgenium.
• Minor bug fixes.

v2.21 (17/06/04)

• Fixed a bug that caused the program to crash on the Tungsten T3.

v2.20 (12/06/04)

• Major overhaul of the internals.
• Added support for color.
• The minimum requirement is now Palm OS 3.5.
• If a previous version of ChemTable is installed on your handheld, you should delete it before installing the new version.

v2.19 (30/07/04)

• This is the last version of ChemTable that runs on Palm OS 3.1.
• Except for color, this version has the same features as v2.22.

v2.18 (20/03/04)

• Modified the electron configurations to show orbitals in order of increasing energy.
• In general, the orbitals are filled in the following order: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p

v2.17 (07/02/04)

• Added Ununtrium and Ununpentium (Elements 113 and 115).
• Fixed minor bugs.
• Now runs more reliably under low memory conditions. Changed the way the application preferences are loaded/saved.
• If you are installing over a previous version of ChemTable, you may need to set your ChemTable display options again.