Instructions:
1. Click on element names to edit them.
2. Drag and drop electrons onto the correct elements. Follow the electron legend below strictly.
3. Press BACKSPACE or the 'Delete Electron' button below to remove the current highlighted electron.
4. You may also hold SHIFT, then click and drag to remove an electron that is locked in place.
5. Check your answer with the 'Check Answer' button below.
Tip 1: The element name text box will be outlined red if you input invalid text.
Tip 2: If you are getting 'invalid electron placement' in your result, make sure you are following the electron legend.
Tip 3: You can Ctrl-Z and Ctrl-Y to undo and redo actions.
Choose a compound:
HCl
HCl
Electron Legend:
A:
B:
C:
D:
E:
F:
Foreign electron:
Check answer to see your results.