Atheism-Believes in no God, Gods, Godly Force, and ext
Monotheism-Beleives in 1 God such as Judaism, Islam, and Christainity (in no particular order)
Polytheism- Beleives in multiple Gods such as Hinduism or...um can't really think of another good example.
If you ever need to know any of that.
Anyway I'm not going to assume all atheists are friends as long as all atheist don't assume all other religons are handicapped.