You cannot delete a facebook account. You can take it offline, but as soon as you log back into FB, it’ll welcome you home. And all of your content is still uploaded there.
I deleted a F/B account.
I asked for it to be deleted, confirmed and never went back. You can Google, Yahoo, Dogpile, Bing, etc. (active and cache) and it just doesn’t exist.
But you need to never touch it again.