MacRoscopic Properties: The World We See

Phases of Matter and Intensive Properties

How much space does an atom occupy?

The atomic radius of the smallest atom, hydrogen, is 53 × 10−12 meters, so it is about 10−10 meters in size. The atomic radius of the largest atom, cesium, is about 270 × 10−12 meters, or roughly five times that of hydrogen. These are all very, very small sizes!


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