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Compared to other metals, alkali metals are soft and have low melting points and densities. But they are powerful in other ways: they react violently with water, releasing hydrogen and forming hydroxides, and they tarnish rapidly in dry air. A feature segment on fireworks illustrates the metals' explosive traits while tracing the human affinity for eye-popping, ear-blasting, multicolored displays.
- Exploring Alkali Metals
- Lithium: Aircraft Alloys
- Sodium: Salt from the Sea
- Cesium: Atomic Clocks
- The Insider's Guide to Fantastic Fireworks
