Define what would be its natural molecular composition

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Look at an electron affinity chart. If we go to a planet where large deposits of element astatine (At), element 85, were found, define what would be its natural molecular composition? That is what would you say would be the molecular formula for At?
(There is only about 30 grams on Earth).

1. At

2. At2

3. At3

4. At4

5. At5

Reference no: EM13664321

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