"Electrons always occupy the lowest empty energy level" is a statement of
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The statement "Electrons always occupy the lowest empty energy level" is a statement of the Aufbau Principle. This principle explains how electrons fill the available energy levels of an atom, starting with the lowest energy level and moving to higher energy levels.
The Aufbau Principle tells us that electrons will occupy the lowest available energy level first before moving to higher energy levels. This means that the first energy level will be filled before the second energy level, and so on. Additionally, each energy level can only hold a certain number of electrons, which is determined by the periodic table.
Overall, the Aufbau Principle helps to explain the electron configurations of atoms and how they behave in chemical reactions. By following this principle, we can predict the electron configurations of different elements and understand how they will react with other elements.