Nuclear Reactions Practice Worksheet + Answer Key

Nuclear reactions can feel abstract fast — different particle notations, two ways to write alpha and beta, and equations that have to balance in a completely different way than regular chemistry. This worksheet breaks it all down before asking students to solve 30 of their own.

✅ Clear explanation of what a nuclear reaction is, including why mass number and atomic number must balance on both sides
✅ All four particle notations covered — alpha, beta, neutron, and gamma — each shown in the correct stacked isotope format, with alpha and beta shown both ways (He/α and e/β)
✅ Spontaneous decay vs. nonspontaneous (bombardment) reactions explained
✅ Two fully worked examples — one spontaneous decay, one bombardment reaction — showing exactly how to balance and solve for a missing particle
✅ 30 unique practice problems in two formats: 24 fill-in-the-blank equations plus 6 word problems where students construct the full equation themselves
✅ Several problems based on real historical nuclear reactions, including the discovery of the neutron
✅ Full answer key included, with every equation fully solved
✅ Instant digital download (PDF)

With 30 problems across two formats, this is one of the most thorough nuclear reactions worksheets available — real practice with real balancing, not just fill-in-the-blank guesswork. Created by a chemistry tutor with 5+ years of experience helping students actually understand this stuff — not just get through it.

📥 Instant download after purchase.