Chemistry ideas click fastest with real practice. This set gives your Grade 9-12 class ninety questions on atomic radius trends across.

Sample questions include "What is the primary reason for the decrease in atomic radius across a period?", "Which ion would have a larger radius, Na+ or Mg₂+?", and "Which atom would you expect to have the largest atomic radius?"

What's Inside?

• 30 Multiple Choice questions as a separate print ready PDF worksheet
• 30 True or False questions as a separate print ready PDF worksheet
• 30 Short Answer questions as a separate print ready PDF worksheet
• Includes Answer Key with Explanations for all 90 questions
• 6 print ready PDF files, 26 pages in total

All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.

Ways to Use This Resource

• Review station before a lab or quiz
• First look diagnostic to plan your unit
• Homework or review before a test
• No prep cover lesson for a substitute teacher
• Self checking practice, since every answer key includes explanations

This set is part of a standards aligned chemistry unit. The unit also covers Atomic Number, Mass Number, Isotopes and Average Atomic Mass, Why Atomic Models Changed Over, Quantum Model as a Predictive, Electron Configurations as, and Valence Electrons and Chemical, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.

Suitable for Grade 9-12 chemistry classes, and for review at any point in the school year. This set is aligned to Virginia SOL standard CH.2c.