What is the lowest energy state of an atom called?

• A. Valence state
• B. Ground state
• C. Excited state
• D. Ionized state

Answer: (B)

Verified step by step guidance

1. Understand that the question is asking for the term used to describe the lowest energy state of an atom.
2. Recall that atoms have different energy levels, and the lowest energy level is the most stable configuration of the atom.
3. Recognize that the term 'Ground state' refers to this lowest energy state where electrons occupy the lowest possible energy orbitals.
4. Differentiate this from 'Excited state,' which is when an atom's electrons have absorbed energy and moved to higher energy levels.
5. Note that 'Valence state' and 'Ionized state' refer to other concepts: valence relates to outer electrons involved in bonding, and ionized means the atom has lost or gained electrons.