logo

Learning objective

Describe radioactive isotopes as isotopes with unstable nuclei.

Read the explanation, check the common trap, then practise with flashcards and questions.

Start flashcardsTry practice questionsTopic hub

At a glance

0

Flashcards

0

Questions

Topic

Atoms and isotopes

Subtopic

Mass number, atomic number and isotopes

Aqa Gcse PhysicsAtomic structure

Study support

Understand this objective

Quick explanation

Describe radioactive isotopes as isotopes with unstable nuclei

  • This point belongs to Atoms and isotopes, especially Mass number, atomic number and isotopes.
  • You need to be able to describe radioactive isotopes as isotopes with unstable nuclei.
  • The key ideas to know are isotope and radioactive isotope.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

isotoperadioactive isotope

Why it matters

This objective helps connect Mass number, atomic number and isotopes to exam-style questions, flashcards, and revision notes for Atoms and isotopes.

Quick student answer

How does radioactive isotopes work?

Direct answer

In Physics, this page helps you answer questions about radioactive isotopes within Atoms and isotopes. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are radioactive isotope and isotope.

Key terms

  • radioactive isotope: An isotope with an unstable nucleus that can emit radiation.
  • isotope: Atoms of the same element that have different numbers of neutrons.

Common trap

Misunderstanding Radioactive Isotopes: Remember that radioactive isotopes have unstable nuclei and emit radiation, while stable isotopes do not. Focus on the definition of radioactive isotopes as those with unstable nuclei.

Related questions

Try this as a practice card

4 linked

Question 1 of 4

Choose an answer, get feedback, then move sideways through the set.

0 of 4 attempted

Flashcard prompts

Flip through the key recall cards

4 cards

Flashcard 1 of 4

Press Space to flip, arrows to move

Practise next

AnswersFlashcardsMCQ drillPractice testQuestions

Revision tools

Choose how to practise

Back to topic hub
Flashcards0 linked cards
No objective-specific flashcards are cached for this page. Use the topic hub to revise the surrounding flashcards without triggering a frozen-subject DB fallback.Open topic hub
Practice Questions0 linked questions
No objective-specific practice questions are cached for this page. Use the topic question bank to practise nearby curriculum questions without weakening the egress guard.Open topic questions
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives