WAEC Physics 2023 Objective — Question 24
Question 24 of 50 from the West African Examinations Council (WAEC) Physics 2023 Objective paper, with the correct answer and a full explanation.
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An atom in an excited state is one whose
- A. potential energy is minimum
- B. potential energy is maximum
- C. electrons are in the conduction band
- D. electrons have moved to a higher energy levelCorrect
Explanation
When an atom is exposed to heat, light or other forms of energy, its electrons absorb the energy and move to a higher energy level/orbital; the atom in this state is said to be excited.
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