Quick answer: An atom has a tiny nucleus of protons and neutrons, with electrons in shells around it. This Chemistry 9-10 quiz checks atomic structure with 10 multiple-choice questions and instant feedback; every answer comes with a short explanation.
This atomic structure quiz for chemistry grades 9-10 has quick multiple-choice questions with instant feedback. Need a refresher first? Read the lesson or do the worksheet on atomic structure.
Choose one answer for each question. Wrong options come from common mix-ups, such as confusing mass number with atomic number, or isotopes with different elements. Read the explanation after each answer.
Level: Chemistry grades 9-10 (GCSE · IGCSE · O Level · Class 9-10) · Curriculum: HS-PS1-1, GCSE C1
