10. Periodic Properties of the Elements

Which of the following is the correct electron configuration for cesium (Cs)?

Which of the following represents the correct electron configuration for the Co(II) center found in vitamin B12?

Which of the following is the correct electron configuration for a nitrogen atom?

Potassium has an atomic number of 19. What is its electron configuration?

Which element has the ground state electron configuration [Kr] 5s^2 4d^{10} 5p^2?

Which of the following are two characteristics of atomic electron configurations?

Which of the following is the correct orbital diagram for a neutral carbon atom?

Which of the following is the correct electron configuration for neon (Ne)?

Which of the following is the electron configuration of the Ga^{3+} ion?

Which element has the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^2?

Which of the following is the correct electron configuration for a neutral carbon atom?

Which of the following orbital notations for phosphorus (atomic number 15) is correct?

Which of the following is the correct ground-state electron configuration for an atom of polonium (atomic number 84)?

Which of the following is the correct ground-state electron configuration for a germanium (Ge) atom?

How many unpaired electrons are present in a neutral neon (Ne) atom?