engineering chemistry MCQ #986

The Aufbau principle states that

engineering chemistry MCQ #986

  1. Question 1

    Q1. The Aufbau principle states that

    • A) electrons occupy lowest available energy levels
    • B) electrons occupy highest available energy levels
    • C) electrons occupy orbitals of same energy
    • D) electrons occupy orbitals randomly

    Answer: electrons occupy lowest available energy levels

    Explanation: Aufbau principle states that electrons fill the lowest available energy levels first.