The mempool is quite busy so your transaction may not have gone thru yet.
You can check here in blockchair what's the status of your transaction
https://blockchair.com/Get the transaction hash/btc address and enter it. You can see what is the priority of your tx
You can also check in -
https://www.blockchain.com/ and enter the btc address where you sent it to.
If it is unconfirmed, then that's the reason why you are not seeing it yet.
Check the outgoing payments in your electrum wallet under the Send tab.
The last transaction that you did (right click) and Copy the address and paste it in the above sites (blockchair/blockchain) and check the status of your tx. Hope this helps.