You are downloading the Periodic Table XAP file v126.96.36.199 for Windows Phone. Periodic Table is a free Education App: This is a simple periodic table of the elements. It shows the different groups in different colors and lets you zoom in and out. It displays the ... You can now download the offline XAP package file to install & try it.
Download Locations for Periodic Table 188.8.131.52 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Periodic Table XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.