Periodic Chart of the Elements iPad app

This app shows the Periodic Table of the Elements, which most certainly hung on the wall of your high school chemistry class. But, instead of showing all the information for an element stuffed into one small incipherable square, you select a chemical trait and the entire chart becomes color coded to show how the range for that trait varies across all elements.
When an elements symbol in the table is clicked on information about it appears in the upper left of the screen, and a simplified diagram of its electron shells appears in the upper right. Being able to view the electron shells like this allows the student to better understand how the electron configuration, along with the radius of the outer shells, control the chemical properties an atom has.

Reviews: At least three independent reviewers consider this app a 'must have' for educators and students.
This shows the table in its most common color scheme - all elements in the same family are shown in the same color. But notice the radio bar along the bottom of the chart. You can can select a different chemical attribute to color-code the chart.
  • Number - color codes the chart to show how the atomic number increases left-to-right, top-to-bottom.
  • Group - (shown to the left) - all elements in the same family are shown the same color.
  • Metal - shows which elements are metals, non-metals or metalloids.
  • Electronegativity - a measure of an atoms reactivity.
  • Radioactivity - a measure of how quick an atom wants to rip itself apart.
  • Melting Point
  • Boiling Point
  • State - whether an element is a solid, liquid, or gas. When this option is selected the Temperature slider control is activiated. You can change to any temperature you wish and the chart will update to show the state of elements at that temperature.


The chart showing the Metal color coding.


The chart with the Electronegativity color coding.


The chart with the State color coding. You can move the Temperatur slider and watch the elements go from solid to liquid to gas as their melting and boiling point temperatures are passed, and then back from gas to liquid to solid.


The More Information screen gives even more information about elements. Care has been given to explain the origin lf those symbols such as Pb that are obviously not derived from the elements name. This makes chemistry a little more interesting and has always been a point of confusion for students.



About the programmer
Kevin Neelands lives in Gainesville, Florida (home of the fightin' gators) and gets his kicks writing silly little programs. He was known as the 'mad scientist' of third period after a chemistry experiment went bad.