- Developer: Power Ten Development LLC
- Website: Official website
- Release Date: 2019-03-09
- Supports: Family Sharing
- Languages: English
- Compatibility: Requires iOS 11.1 or later. Compatible with iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, and iPod touch (7th generation).
## Description
VSEPR invaders in an arcade-style shooter app that helps students learn the various molecular geometries as a result of electron repulsion.
First, users learn various different VSEPR configurations. These include:
Linear, Trigonal Planar, Tetrahedral, Trigonal Bipyramidal, and Octahedral.
Next, the user starts the game and has a certain amount of time to shoot as many geometry models as possible.
Each ten-second segment of the game selects a certain molecular geometry and the student must target these models in order to score five points.
If the user shoots the incorrect model during the ten second period, they lose 1 point.
Once, the timer has reached ninety seconds, the game stops and the user's score is reported.
This app provides a fun and interactive experience to help learn molecular geometry in an innovative and new manner.
The free version of the app features games that last 1 to 2 minutes and the In-App purchase provides extended game length from 3 to 8 minutes.
