Quick Answer: The Isotopes of Hydrogen Model is a transparent acrylic model showing protium, deuterium and tritium side by side. Each has one proton and one electron, while the nucleus holds no neutron, one neutron or two neutrons.
Last updated: October 2026
Key Features
Separate displays for protium, deuterium and tritium
Protium: no neutrons; deuterium: one neutron; tritium: two neutrons
Same single proton and electron in each isotope
Distinct colours for protons and neutrons
Transparent acrylic for a clear view of the nucleus
Technical Specifications
Specification
Value
Isotopes shown
Protium, deuterium, tritium
Neutrons
Protium none; deuterium one; tritium two
Protons
One in each
Material
Transparent acrylic
Colour coding
Distinct colours for protons and neutrons
About This Product
The model shows students that atoms of one element can differ in mass: the atomic number stays at one, but each extra neutron raises the mass. It leads into nuclear chemistry topics, such as deuterium in fusion research and tritium as a radioactive tracer.
Frequently Asked Questions
How many neutrons does each isotope in the Isotopes of Hydrogen Model have?
Protium has none, deuterium has one and tritium has two; all three have one proton.