About Isotopes and Atomic Mass
Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.
How to play Isotopes and Atomic Mass
Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Are all atoms of an element the same?
Questions & answers
- What is Isotopes and Atomic Mass?
- Isotopes and Atomic Mass is a free interactive simulation from PhET Interactive Simulations (University of Colorado Boulder) that you can play right in your browser on crumble.lol — no downloads and no sign-up. Are all atoms of an element the same? How can you tell one isotope from another?
- What can kids learn from Isotopes and Atomic Mass?
- It helps kids explore: define “isotope” using mass number, atomic number, number of protons, neutrons and electrons. given information about an element, find the mass and name of an isotope. give evidence to support or dispute: “in nature, the chance of finding one isotope of an element is the same for all isotopes.” find the average atomic mass of an element given the abundance and mass of its isotopes. predict how the mass and name of an isotope will change given a change in the number of protons, neutrons or electrons. predict how the average atomic mass of an element changes given a change in the abundance of its isotopes.
- What age is Isotopes and Atomic Mass good for?
- It is designed for middle school (roughly ages 10–14) up to university, and curious kids outside that range can absolutely enjoy poking around it too.
- Is Isotopes and Atomic Mass free to play?
- Yes — Isotopes and Atomic Mass is completely free on crumble.lol and runs fully in your browser on computers and tablets.