Question Topics: Structure 1.3 Electron configurations

What is the electron configuration of an atom of Cu?

What is the maximum number of electrons that can occupy the fourth main energy level of an atom?

What is the electron configuration of the \( Cr^{2+} \) ion?

What is the maximum number of electrons that can occupy the \( n=3 \) main energy level?

Which of the following species have the same number of outer electrons? The letters do not represent symbols of elements.

Which of the following correctly describes the 3-dimensional shapes of s and p atomic orbitals?

Which diagram shows the correct electron configuration of a nitrogen atom in the ground state?

What is the best evidence that energy levels are closer together as distance from the nucleus increases?

Which orbital diagram represents a correct ground state electron configuration based on the Pauli exclusion principle and Hund’s rule?