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  • Periodic Table Trends and Structure
  • What is the correct electron configuration for Mg?
Multiple choice

What is the correct electron configuration for Mg?

  1. 1s2 2s2 2p6 3s2

  2. 1s2 2s2

  3. 1s2 2s2
    3p2

  4. 1s2 2s2 2p6

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A Correct answer
Explanation

Magnesium (Mg) has 12 electrons. The configuration 1s2 2s2 2p6 3s2 accounts for all 12 electrons.

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