What is the Quantum Number Calculator?

The Quantum Number Calculator determines the quantum numbers for the last electron in an atom based on its atomic number (Z). By entering an element’s atomic number, the tool calculates the principal (n), azimuthal (l), magnetic (m_l), and spin (m_s) quantum numbers using the electron configuration. This helps students, educators, and chemistry enthusiasts understand electron arrangements, predict chemical properties, and visualize orbital occupancy.

How to Use:

1. Enter Atomic Number (Z): Type the atomic number of the element (1–118).
2. Click “Calculate”: The calculator determines the last electron’s orbital and its quantum numbers.
3. Review the Result: The output displays the principal, azimuthal, magnetic, and spin quantum numbers, helping you analyze electron configuration and orbital properties.