If you get ios 10 beta can you still get ios 10 the full release???

See this support document for information about beta software. This is as much as can be provided in a public forum. About iOS beta software - Apple Support It tells you about the final version of the iOS.

Scroll down to the bottom of the beta FAQ - https://beta.apple.com/sp/betaprogram/faq

Scroll down to the bottom of the beta FAQ - https://beta.apple.com/sp/betaprogram/faq

Yes this is possible, I downloaded the El Capitan beta for my iMac, I then downloaded El Capitan (the full release) on the same iMac, with the beta running and it worked.