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Type: Multiple-Choice
Category: Atomic Structure
Level: Grade 10
Score: 1
Tags: electron configurations
Author: teachchemistry
Last Modified: 5 months ago

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Atomic Structure Question

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Grade 10 Atomic Structure

Which element has an atom with the electron configuration 2-8-1?
  1. magnesium
  2. sodium
  3. calcium
  4. beryllium
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