Lewis Dot Structure Calculator



A Lewis symbol consists of an elemental symbol surrounded by one dot for each of its valence electrons: Figure 7.9 shows the Lewis symbols for the elements of the third period of the periodic table. Figure 7.9 Lewis symbols illustrating the number of valence electrons for each element in the third period of the periodic table. The Lewis Electron Dot Structures Concept Builder is shown in the iFrame below. There is a small hot spot in the top-left corner. Clicking/tapping the hot spot opens the Concept Builder in full-screen mode. Use the Escape key on a keyboard (or comparable method) to exit from full-screen mode. A step-by-step explanation of how to draw the C3H8O Lewis Dot Structure. For the C3H8O structure use the periodic table to find the total number of valence e. MolCalc The Molecule Calculator. New Molecule; Molecule List; Help; ATTENTION: new version (e)-but-2-ene azane azane (e)-ethene-1,2-diol formaldehyde oxidane oxidane (z)-but-2-en-1-amine molecular hydrogen (z)-ethene-1,2-diamine (z)-ethene-1,2-diamine; 1,1,2-trifluoroethene 1,1-difluoroethene. Most resonance structures and coordination compounds are also supported. Simply follow the steps below: If you do not already know the name or chemical formula of the molecule you wish to generate a dot structure for, you can browse the list of molecules at molcalc.org by clicking here.

Lewis Dot Structure Calculator With Dots

Calculator

Covalent Lewis Dot Structure Calculator

Commonly Tested Lewis Structures


  • Read my article in Science Education based on my dissertation.

We draw Lewis Structures to predict:
-the shape of a molecule.
-the reactivity of a molecule and how it might interact with other molecules.
-the physical properties of a molecule such as boiling point, surface tension, etc.

Video: Drawing the Lewis Structure for ICl4-

For the ICl4- Lewis structure the total number of valence electrons (found on the periodic table) for the ICl4- molecule. Once we know how many valence electrons there are in ICl4- we can distribute them around the central atom with the goal of filling the outer shells of each atom.

In the Lewis structure of ICl4- there are total of 36 valence electrons.

Since Iodine (I) is below Period 3 on the periodic table it can hold more than 8 electrons. In the Lewis structure for ICl4- the Iodine atom has 12 valence electrons.

Also note that you should put the ICl4- Lewis structure in brackets with as 1- on the outside to show that it is an ion with a negative one charge.


It is helpful if you:

  • Try to draw the ICl4- Lewis structure before watching the video.
  • Watch the video and see if you missed any steps or information.
  • Try structures similar to ICl4- for more practice.

List of Lewis Structures

AcetoneBF3BH4-BrF5BrO3-C2H2C2H4ClO-
CH4ClO2-ClO2ClO4-COCS2H2OH3O+
HClHNO3I3-ICl4-IF5N2N3-NH2OH
NH3NO2-NO2NO3-O2OF2PCl5PH3
PO33-PO43-SCl2SF4SF6SO3SO42-XeF2
XeF4
Structure

Read and write many popular chemical file types for working with the applications you use:

Lewis Dot Structure Generator

ACD/ChemSketch Documents (.sk2), ChemDoodle Documents (.icl), ChemDoodle 3D Scenes (.ic3), ChemDoodle Javascript Data (.cwc.js), CambridgeSoft ChemDraw Exchange (.cdx), CambridgeSoft ChemDraw XML (.cdxml), Crystallographic Information Format (.cif), CHARMM CARD File (.crd), ChemAxon Marvin Document (.mrv), Chemical Markup Language (.cml), Daylight SMILES (.smi, .smiles), IUPAC InChI (.inchi), IUPAC JCAMP-DX (.jdx, .dx), ISIS Sketch File (.skc), ISIS Sketch Transportable Graphics File (.tgf), MDL MOLFiles, both V2000 and V3000 connection tables (.mol, .mdl), MDL SDFiles (.sdf, .sd), MDL RDFiles (.rdf, .rd), MDL RXNFiles, both V2000 and V3000 connection tables (.rxn), MMI SketchEl Molecule (.el), Molinspiration JME String (.jme), RCSB MacroMolecular Transmission Format (.mmtf), RCSB Protein Data Bank Files (.pdb, .ent), Schrödinger MacroModel (.mmd, .mmod), Schrödinger Maestro (.mae), Standard Molecular Data (.smd), Tripos Mol2 (.mol2, .ml2, .sy2), Tripos Sybyl Line Notation (.sln), Beilstein ROSDAL (.ros), XYZ Files (.xyz)