What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?A. The 4s subshell should appear before the 3d subshell. B. The 3p subshell should have more than 6 electrons. C. The 3d subshell can hold only 8 electrons. D. The 4d subshell should receive electrons before the 4p subshell.2. Why should the 4s subshell be filled before the 3d? A. The 4s subshell has greater spherical symmetry than the 3d subshell. B. The 4s subshell is farther from the nucleus than the 3d subshell. C. The 4s subshell is at lower energy than the 3d subshell. D. The 4s subshell holds fewer electrons than the 3d subshell.3. Write the electron configuration for the Na+ ion, which has ten electrons.4. Write the electron configuration for the Br? ion, which has thirty-six electrons.