LEWIS
STRUCTURE
CALCULATOR
H
Molecule charge:
Load example:
- Drag between two atoms to create bond
- Right click to remove atom or bond
- ctrl+z / ctrl+y for undo/redo
- shift + drag to move atom
Formal charges and lone pairs will be
automatically calculated.
Electronegativity (less to more):
N/A
Period 3 and beyond (can have 8+ electrons):
None
Note: Hydrogen can only have 2 electrons. Elements in period 3 and beyond can have more than 8 electrons.
Molecule shapes in the examples may not be 100% accurate. Electrons are distributed round-robin in pairs to the central atoms.
VSEPR classification is done via simple pattern matching. The CN (classification number) is the number of lone electron pairs + the number of bonds (not double counting double/triple bonds). Images are from this wikipedia article.