Lost part of blood clot after a tooth extraction on friday but i'm not in pain?

That: should be fine as long as you are not bleeding

If : No active bleeding just wait for 1 wk it will be ok

That is healing: I suspect that is clotting is part of your healing. I would check with your dentist to make sure there is no other reason for this to occur

Normal: Sounds like you are healing normally. If you have pain, bleeding, bad taste or smell, notify your treating Dentist/Oral Surgeon immediately. Otherwise, don't worry.