Lithium
Lithium Formation
Lithium
Lithium Nuclei

Lithium

Harleah Fonteyn

Harleah Fonteyn

Junior Researcher
2026-03-30

Harleah is a Junior Researcher at Unset. She investigates subjects across culture, history, education and everyday life, helping to research and develop the material that becomes part of unset.world.

Lithium

Overview

Lithium is a soft, lightweight metal that forms in stars and is found in rock and underground salt lakes. It is commonly used in rechargeable batteries for phones, laptops, and electric cars. Lithium’s cell on the periodic table shows it has an atomic number of 3 and is an alkali metal, which means it reacts easily and is not found alone in nature.

Lithium — Deeper page — Lithium Nuclei

Once a nucleus is identified as lithium, what can still vary inside it? Open Lithium Nuclei to investigate.

Lithium Nuclei

Lithium Nuclei

Explore lithium nuclei, apply proton and neutron counting, and connect their identities with the early-universe story.

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