going to be Pre-Med and there is a sorority called Kappa Gamma Delta which Pre-med Sorority society Phi Beta Kappa- can one join an academic society?

Yes, you can absolutely join an academic society like Phi Beta Kappa while also being a member of a pre-med sorority like Kappa Gamma Delta. These are entirely separate organizations with different purposes. Phi Beta Kappa recognizes high academic achievement, while a sorority provides social and potentially professional networking opportunities. Many students are members of both types of organizations.