As pure elements, all of the halogens are diatomic molecular species. Their melting points are: F2, 85 K, C12, 239 K, Br2, 332 K, and 12, 457 K. Using the Periodic Table, predict as best you can the molecular formula of elemental astatine, At, the only radioactive element in this family. Also predict whether it will be a solid, liquid, or gas at room temperature. At2, solid O At2, gas O At, solid At2, liquid At, liquid O At, gas

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As pure elements, all of the halogens are diatomic molecular species. Their melting
points are: F2, 85 K, C12, 239 K, Br2, 332 K, and 12, 457 K. Using the Periodic Table,
predict as best you can the molecular formula of elemental astatine, At, the only
radioactive element in this family. Also predict whether it will be a solid, liquid, or gas
at room temperature.
At2, solid
At2, gas
At, solid
At2, liquid
At, liquid
At, gas
Transcribed Image Text:As pure elements, all of the halogens are diatomic molecular species. Their melting points are: F2, 85 K, C12, 239 K, Br2, 332 K, and 12, 457 K. Using the Periodic Table, predict as best you can the molecular formula of elemental astatine, At, the only radioactive element in this family. Also predict whether it will be a solid, liquid, or gas at room temperature. At2, solid At2, gas At, solid At2, liquid At, liquid At, gas
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