CHE 101 Lecture Notes - Lecture 8: Lanthanide, Wave Equation

All of the following orbital representations are allowed except 7s 3d 1p 4f 3p Which of the following sets of the four quantum numbers n, l, m and s describe one of the outermost electrons in a ground-state radium atom? 6, 1, 1, 1/2 7, 0, 1, -1/2 7, 0, 0, -1/2 7, 1/2 7, 2, 1, -1/2 Electron configurations The electron configuration for Cr^2+ is [Ar] 4S^2 3d^4 [Ar] 4s^1 3d^5 [Ar] 3d^4 [Ar] 4s^2 3d^2 none of these Which pair of species is iselectronic? K^+ and Ar Na^+ and K^+ F' and Cl^- B^3+ and Ne Be^2+ and Na^+ Which of the following have a total of 10 electrons in the d orbital's? Mn Fe Cu Zn tow of the above What doubly positive ion has the ground-state electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10? Ni^2+ Zn^2+ Cd^2+ Ca^2+ Sr^2+