Electron Configuration Practice with Answer Key

Electron configuration practice with 20 problems: writing standard and noble gas notation, naming the element from a given configuration, and finding the mistake in incorrect ones.
Year levels
Years 8–12
File type
Microsoft Word

Updated Sep 18, 2026

Subject
Chemistry, Science
Topic
Electron Configuration, Chemistry Practice
Resource types
Activities

From the author

About this resource

This resource presents 20 problems which cover configuration of electrons.

Skills to practise with this resource include: writing standard and noble gas notation, how to read configurations, and finding the mistakes in configurations.

The answers to the questions are included, though the resource can be edited to meet your lessons' needs.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Write electron configurations in standard and noble gas notation

  • Identify an element from its electron configuration

Skills covered

  • Error analysis — spotting and correcting mistakes in written configurations

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