Kaplan Nursing Entrance Practice Exam

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What is meant by the ground state of an electron?

  1. A state with the highest energy

  2. A constant energy level

  3. The lowest-energy state

  4. A transient energy state

The correct answer is: The lowest-energy state

The ground state of an electron refers to the lowest-energy state an electron can occupy within an atom. In this state, the electron is at its most stable configuration, meaning it has the least amount of energy possible while still being bound to the nucleus. This contrasts with excited states, where an electron has absorbed energy and moved to a higher energy level. Understanding the ground state is essential in chemistry and physics because it lays the foundation for how electrons behave under various conditions and how they interact with energy, such as photons during absorption and emission processes.

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