Question: Predict the missing value (?) for radioactive astatine (At). The atomic radius, density, and boiling point are given for elements in Group VIIIA/17. Element Br

Predict the missing value (?) for radioactive astatine (At). The atomic radius, density, and boiling point are given for elements in Group VIIIA/17.

Element Br I At Atomic Radius 115 pm 133 pm (?) pm Density at 20 C Density at 20 C 3.10 g/L 4.93 g/L (?) g/L

Element Br I At Atomic Radius 115 pm 133 pm (?) pm Density at 20 C Density at 20 C 3.10 g/L 4.93 g/L (?) g/L Boiling Point 59 C 184 C (?) C

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