Treasure Inspiration
Radioactivity & Atomic Physics
T

Isotopes and types of radiation

Push a bit harder. Apply what you know to less familiar problems.

Combined Science · Medium

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 1Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons.
  • 2Alpha particles are helium nuclei (2 protons, 2 neutrons), beta particles are fast electrons, and gamma rays are electromagnetic waves.
  • 3Alpha is the most ionising but least penetrating; gamma is the least ionising but most penetrating.
  • 4Background radiation comes from natural sources like rocks, cosmic rays, and also some man-made sources like medical uses.

Question mix

A mix of question types to build your skills.

  • Fill the gap×1
  • Multiple choice×3
  • True / False×1

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.