Even if Electron is 'not connected' you still have your address,
Be sure to have latest version of Electron wallet (currently 3.3.8 ),
If you are still not connected then maybe your firewall or antivirus is blocking Electron.
Electron (Electron Cash) is forked wallet for Bitcoin Cash, you should not mix it with Electrum BTC. Sending BTC to Electron Cash is a process that can be reversed relatively easily, but for some newbie it's just unnecessary work which should definitely be avoided.
Click on the red orb on the bottom right, click on "Server", and try various different servers. If no server is working, then it's an issue with you.
It is important to emphasize that in case of manual server selection option
“select server automatically” need to be unchecked, and that servers from list need to be selected by right click on them and using option
"use as server". After that step it is important to wait some time, depending on internet speed - Electrum need to download blockchain header file which is some 40+ MB in size.