Input interpretation
antimony | Aufbau diagram
Result
Build the ground-state orbital diagram for: antimony (Sb) Plan: • Look up the abbreviated (condensed) ground electronic configuration. • Use the electronic configuration to identify the outermost electrons. • Determine the energetic ordering of atomic orbital subshells. • Use the following representations: a gray rectangle for an atomic orbital, an up arrow for an alpha (spin-up) spin state and a down arrow for a beta (spin-down) spin state. • Follow the Pauli exclusion principle by representing the first electron in each atomic orbital with an alpha spin state and the second electron with a beta spin state. • Place electrons into orbitals following the Aufbau principle and Hund's rule. The abbreviated ground electronic configuration for antimony is: [Kr]5s^24d^105p^3 Electrons in atomic orbitals outside of the krypton core, [Kr], are the outermost electrons: 5s^24d^105p^3 Atomic orbital energy usually increases from 1s to 8s in the following order: Follow the Aufbau principle by filling the atomic orbitals with electrons in the following order: 5s < 4d < 5p Place two electrons as an alpha-beta pair into the 5s orbital: 5s Place ten electrons as alpha-beta pairs into the five 4d orbitals: 4d 5s Follow Hund's rule by placing one alpha electron into each of the three 5p orbitals: Answer: | | 5p 4d 5s