Science Class with Uncle Victor

Lithium is a chemical element with the symbol Li and atomic number 3. It’s one of the simplest and lightest metals.
🔬 Basic facts
Element type: Alkali metal
Atomic number: 3
Appearance: Soft, silvery-white metal
Reactivity: Very reactive (especially with water)
Density: The lightest solid element
⚡ Key properties
Can be cut with a knife because it’s very soft
Reacts with water to form lithium hydroxide and hydrogen gas
Stored in oil to prevent reaction with air or moisture
🔋 Common uses
Batteries – Lithium-ion batteries power phones, laptops, and electric vehicles
Medicine – Used to treat Bipolar disorder (as lithium carbonate)
Alloys – Mixed with other metals to make lightweight, strong materials (e.g., in aircraft)
Glass & ceramics – Improves strength and heat resistance