Astatine is a highly unstable radioactive element and the halogen group member of the periodic table. It is denoted with chemical symbol At and the atomic number 85. It is mainly used in the nuclear projects. Electronic configuration of the Astatine atom is [Xe] 4f145d106s26p5 and the common oxidation state is +1.

Astatine is a highly unstable radioactive element and the halogen group member of the periodic table. It is denoted with chemical symbol At and the atomic number 85. It is mainly used in the nuclear projects. Electronic configuration of the Astatine atom is [Xe] 4f145d106s26p5 and the common oxidation state is +1.


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