Molecule Shapes- inquiry

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Submission Information
Authors	Trish Loeblein
Contact Email	ploeblei@jeffco.k12.co.us
School / Organization	PhET
Submitted	11/10/23
Updated	12/02/19
Contribution Description
Title	Molecule Shapes- inquiry
Simulations	Molecule Shapes
Keywords	phet, molecules, nomenclature, bonding, ionic, covalent, tetrahedral, lone pairs, lewis, linear. bent
Description	This was used in class or as homework depending on the schedule. Learning Goals: Students will be able to: •Identify substances to which “Molecular geometry” applies. •Name molecule and electron geometries for basic molecules. •Explain the model being used to predict molecule geometry. •Predict common molecular geometry from the number of electron pairs and bonded atoms around a central atom of basic compounds
Level	High School, Undergraduate - Intro
Type	Homework, Lab, Concept Questions
Subject	Chemistry
Answers Included	No
Language	English

	Content Level
Content Standard	K-4	5-8	9-12
Science as Inquiry - A
Physical Science - B
Life Science - C
Earth & Space Science - D
Science & Technology - E
Science in Personal and Social Perspective - F
History and Nature of Science - G

Gold Star contributions are high quality inquiry-based activities that follow the PhET design guidelines (PDF) and that teachers find useful.

Reason for nomination

What do you think about this activity? How did you use it or change it for your class? Professionally constructive comments welcome.

For the simulation, the model for two lone pairs of electrons attached to a central atom with two single bonds (H2O or OF2) shows a bond angle of 109.5. The bond angle should be 104.5. 12/02/01 James Nugent
Having been in a number of conversations with the Phet help desk I appreciate that the simulation is not perfect at this point. That said, it's worth also knowing that the simulation doesn't take into account double or triple bond affects on molecular geometry for non-resonance molecules. This is not likely to be an issue for the standard honors/college prep type chemistry class, but if you driving at a level higher than this (AP or college level) you want to be aware of it. 12/02/10 James Nugent

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