Identify the element with the electron configuration [Ar] 4s^2 3d^10 4p^2.

The electron configuration [Ar] 4s^2 3d^10 4p^2 corresponds to the element that has a total of 32 electrons, which can be confirmed through adding the numbers represented in the configuration. The [Ar] notation indicates that the electron configuration begins with the noble gas argon, which accounts for the first 18 electrons. The 4s^2 contributes 2 electrons, the 3d^10 contributes 10 electrons, and the 4p^2 contributes another 2 electrons, totaling 32.

The element with this total number of electrons is germanium (Ge), which is located in group 14 of the periodic table. The presence of 4p^2 indicates it has four electrons in its outermost shell, which is characteristic of the group containing elements like silicon and germanium that are known for their semiconductor properties.

In contrast, selenium, bromine, and krypton have different electron configurations and corresponding atomic numbers that do not match this configuration when evaluating their total electron counts or positions in the periodic table. For instance, selenium (Se) follows a different pattern with additional electrons in the p-block, and bromine (Br) is found with a different distribution of