Question

is the cf4 molecule polar? (c is the central atom and all of the fs are bonded directly to it.)
yes
no

Explanation:

To determine if \(CF_4\) is polar, we consider its molecular geometry and bond polarity. The \(C - F\) bonds are polar (since \(F\) is more electronegative than \(C\)). However, \(CF_4\) has a tetrahedral geometry. In a tetrahedral molecule with four identical bonds (all \(C - F\) here), the bond dipoles cancel each other out. For example, in a symmetrical tetrahedral arrangement, the vector sum of the individual bond dipoles is zero. So, the molecule has no net dipole moment.

Answer:

No