The NPHC organizations, including Alpha Kappa Alpha, generally don't answer questions here. However, you can find the answer to the question you've asked -- and many others -- at the national website, at
http://www.aka1908.com/ . Read every page carefully.
If you have questions that the national website doesn't answer, the best way to get them answered is to get to know a few members of the organization well, and then talk to them.