$\mathrm{BF}_{3}$ is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are:
(1) $\mathrm{sp}^{3}$ and 4
(2) $\mathrm{sp}^{3}$ and 6
(3) $\mathrm{sp}^{2}$ and 6
(4) $\mathrm{sp}^{2}$ and 8