Yes but you are unlikely to get a reward with 1 EMC. Not possible even with 1000, 10000, 50000 EMC even provided that they are in staking for short term. On the other hand, with a few million, you can get a few block rewards a day. I was staking with more than 10 million at some point and used to get 7/8 blocks but that was low though because of my internet. I was using wifi instead of a direct broadband line. It sometimes get disconnected and as a result, I missed more blocks a day.