Meaning of ASTATINE in English

ASTATINE

Name: astatine

Symbol: At

Atomic number: 85

Atomic weight: [ 210 ]

Group in periodic table: 17

Group name: Halogen

Period in periodic table: 6

Block in periodic table: p-block

CAS registry ID: 7440-68-8

The longest-lived isotope, 210At, has a half-life of only 8.3 hours. There are about 20 isotopes known, all of which are radioactive. Astatine is a halogen and possibly accumulates in the thyroid like iodine.

Chemistry of the elements English vocabulary.      Английский словарь химии элементов.