Chemistry ideas click fastest with real practice. This set gives your Grade 9-12 class ninety questions on isotopes and stability, aligned to the same NGSS performance expectation.
Students will answer questions such as "Which isotope of hydrogen is the heaviest?", "Which of the following isotopes is considered stable?", and "Which of the following isotopes is stable and commonly found in nature?"
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.
This set is part of a complete NGSS aligned chemistry unit. The unit also covers Nuclear Reactions, Radioactive Decay Types, Fission and Fusion, Nuclear Equations, Half Life Calculations, and Radiation Detection, 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 NGSS aligned review at any point in the school year. This set is aligned to NGSS standard HS-PS1-8.
