Course review
Review each learning objective in this topic, then open its concept explanation or question set.
Learning objective
• Nucleus: protons + neutrons (nucleons), positively charged, dense • Electrons: negatively charged, occupy space outside nucleus • Use nuclear symbols to deduce protons, neutrons, and electrons in atoms and ions
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Same element, different numbers of neutrons • Nuclear symbol: Z^A X (Z = protons, A = mass number) • Calculate relative atomic masses from isotopic abundance • Understand isotope physical property differences; specific isotope examples are not required
Start with the concept explanation, then practise to create mastery evidence.