Quick Answer: The Isotopes of Hydrogen Model is a set of three 3D atomic models showing protium, deuterium and tritium side by side. The number of protons and electrons stays the same across the set while neutrons are added, and each model is fixed on its own labelled base.
Last updated: October 2026
Key Features
Three models: protium, deuterium and tritium
Colour-coded protons, neutrons and electrons
Transparent orbital paths
Each model fixed on a labelled base
Side-by-side comparison of nuclear mass
Technical Specifications
Specification
Value
Model type
3D atomic isotope set (protium, deuterium, tritium)
Material
Polystyrene spheres and acrylic
Subatomic parts
Distinct protons, neutrons and electrons
Mounting
Fixed on a labelled base
Application
Nuclear physics, general chemistry, STEM modules
About This Product
Placed next to each other, the three models show students that adding neutrons raises an atom’s mass without changing which element it is. Teachers use the set to introduce atomic mass and nuclear stability, and as a starting point for topics such as radioactive decay, heavy water and nuclear fusion.
Frequently Asked Questions
Which isotopes are included in the set?
The set has three models: protium, deuterium and tritium, the isotopes of hydrogen.
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