Atomic Number: 85

Protons: 85

Electrons: 85

Neutrons: 125

Average Atomic Mass: 210

Isotopes: There are no naturally occurring isotopes of Astatine. However At-207, At-208, At-209, At-210, and At-211 have been created.

Discovery: Astatine was discovered in California by Dale Corson and MacKenzie Segre in 1940.

Name: The name Astatine comes from the Greek word "astatos" which means unstable.

Uses: There are no uses.

Interesting Facts: Astatine is not found in nature and must be made in a nuclear reactor. It is an unstable element that breaks apart easily