Collizion
A simple, free, and open-source periodic table of elements application
Collizion is a minimal, free, and open-source programme written in Java, that shows you the periodic table of elements. You can use Collizion to look for the information (Elements' symbols, atomic number, atomic mass, electronegativity, and type) about the elements, to learn who discovered the element, when was the element discovered, and what are their uses.
GitHub: https://github.com/clieg/Collizion