The chemical formula Ca₂F is incorrect. The correct formula for the compound formed by calcium (Ca) and fluorine (F) is CaF₂.

Here's why:

* Calcium (Ca) has a +2 charge (Ca²⁺) when it forms an ion.

* Fluorine (F) has a -1 charge (F⁻) when it forms an ion.

To balance the charges and create a neutral compound, you need two fluoride ions (2 x -1 = -2) for every one calcium ion (+2). This results in the formula CaF₂.

Therefore, the name of this compound is calcium fluoride.