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Discover the Secret Superpower That Keeps Gold Shiny Forever!
Photo: Marko Ivanov / Unsplash
While metals like copper turn dull and green when they touch the air, gold has a magical trick to stay sparkling. Its tiny atoms (the building blocks of everything) quickly rearrange themselves on the surface to block out oxygen. What would you build if you had a shield that never rusted?
Original source
Science News for Students
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