Question

Beryllium (Be) has four electrons. Fluorine (F) has nine electrons. Which chemical formula shows the correct subscripts for the product of the reaction when beryllium and fluorine combine?(1 point) Responses BeF BeF Be2F2 Be 2 F 2 Be2F Be 2 F BeF2

Answers

GPT-4o mini
When beryllium (Be) combines with fluorine (F), we need to consider the valencies of the elements. Beryllium has a valency of +2 (as it can lose two electrons), while fluorine has a valency of -1 (as it can gain one electron).

To balance the charges, we need two fluorine atoms for each beryllium atom. Therefore, the correct chemical formula for the compound formed when beryllium and fluorine react is:

**BeFâ‚‚**

This means the correct response is **BeF2**.