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chazon

elements · 55 / 118 · All 118

Cs

Caesium

Z 
55
Mass 
132.905
Lifeforce 
Fire

Soft as butter, explosive in water — and of all metals, this is the one that measures time itself: the second is defined by its hyperfine transitions, and every atomic clock on Earth runs on it.

A smith's hands strike sparks from glowing embers; the sparks become tiny glowing runners.
Plate · Fire Fire never waits — it ignites whatever it touches.

Caesium. Element fifty-five. Defines time itself — the second is measured by its hyperfine transitions. Soft as butter, explosive in water. Every atomic clock on Earth runs on it.

Lab note · Element fifty-five; the second is measured by its hyperfine transitions. Reacts explosively with water.