Sodium: Soft as Cheese, Explosive in Water

Sodium is so soft you can slice it with a butter knife like cold cheese — but don't let that fool you, because the moment it touches water, it explodes into flames!

A short silent video about Sodium (Na), element 11, alkali metal. Sodium is a highly reactive alkali metal and an essential element for all animals. Table salt is sodium chloride.

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Explore Sodium: facts, properties and a 3D atom · Back to the periodic table