My balance in Electrum shows "pending." What does pending mean?
Virtual Currency wallets show as 'pending' until enough transactions have happened AFTER that one in the block chain. It is a feature to prevent false sends and doubble spends of wallet to wallet transactions. Not all wallets let you know how many more blocks need to come after to ensure the transaction is a valid one. Time and patience will eventualy show that it is complete. If it is still ' pending ' after 48 hours, contact the other party to see if there is an issue at their end.