App Description
VSPER teaches Valence Shell Electron Pair Repulsion theory and enables the student to appreciate the constraints imposed by the number of electron pairs, while reinforcing the concept that the molecular geometry is determined by the arrangement of actual atoms bonded.
iPad Screenshots
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App Changes
- June 18, 2014 Initial release
- June 23, 2015 Price increase: FREE! -> $0.99
- August 02, 2015 Price decrease: $0.99 -> FREE!
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