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Type: Multiple-Choice
Category: Atomic Structure
Level: Grade 10
Score: 1
Tags: electron configurations
Author: teachchemistry
Last Modified: 7 years ago

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Atomic Structure Question

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Grade 10 Atomic Structure

Based on electron configurations, which of the following pairs of elements contains the same number of energy levels?
  1. sodium and beryllium
  2. magnesium and calcium
  3. lithium and neon
  4. strontium and radium