The periodic table/Astatine

< The periodic table
Subject classification: this is a chemistry resource .
Completion status: this resource is just getting off the ground. Please feel welcome to help!
Resource type: this resource is an article.
Educational level: this is a research resource.

Discovery

Astatine was discovered in the University of California, Berkeley, USA by Dale R. Corson, K. R. MacKenzie, and Emilio Segre in 1940.

Quick Facts

Name: Astatine Atom

Symbol: At

Atomic Mass: 210 amu

Classification: group 7 (halogens)

Protons: 85

Electrons: 85

Neutrons: 125

Colour: unknown, predicted to be black

Discovery in: 1940

Density: unknown

Crystal Structure: unknown

Melting Point: 302 °C (575 K)

Boiling Point: 337 °C (610 K)

Common Uses: radiation therapy, medical uses

See also

Search for Astatine on Wikipedia.

This element is a stub. Learn how you can help Wikiversity to expand it. (See other stubs here)

This article is issued from Wikiversity - version of the Tuesday, April 05, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.