MDCAT Chemistry MCQ #935

How does the effective nuclear charge experienced by valence electrons change from Mg to Al?

MDCAT Chemistry MCQ #935

  1. Question 1

    Q1. How does the effective nuclear charge experienced by valence electrons change from Mg to Al?

    • A) Increases due to higher atomic number
    • B) Decreases with additional shielding
    • C) Remains constant across the period
    • D) Depends on electron spin orientation

    Answer: Increases due to higher atomic number

    Explanation: Zeff increases from Mg to Al (A). Shielding (B) doesn't outweigh nuclear charge effects.