Atoms - Literally beneath the surface

This is my first Ludum Dare Compo! I took the theme literally and made a videogame about chemistry (because beneath every single surface there is nothing more than molecules and atoms). It is intended to have a sense of progression like mario or candy crush but I didn't have time to implement that, so instead you have the levels one after another.

To play just click the valences and make oxides!

PD: There are 3 levels, it "ends" on the calcium one.

If you don't mind answering in the comments:

-Did yoy feel you learned something with this game?

Thank you!

Made by @Annyv2

Tools:

Phaser

Music made with Bosca Ceoil.

http://distractionware.com/blog/2013/08/bosca-ceoil/

Sound effects made using sfxr.

http://www.drpetter.se/project_sfxr.html

Art

Pixlr http://pixlr.com/editor/