Why Does Silver Turn Black While Gold Does Not? Explained in Simple Words

Why does silver turn black while gold stays shiny forever? In this video, we explain in simple words why silver tarnishes and gold does not. You'll learn why the black layer on silver is not rust, how traces of hydrogen sulfide in ordinary air turn silver into black silver sulfide, why gold is called a noble metal, and the surprising real answer to gold's unreactivity: Albert Einstein's theory of relativity. Along the way, you'll discover why that same relativistic effect makes gold yellow and mercury liquid, and why gold coats the connectors inside your phone and the visors of astronaut helmets. Whether you're a chemistry student, a curious science fan, or someone who just found a blackened silver spoon in a drawer, this explainer breaks down tarnish, noble metals, and relativistic chemistry into ideas anyone can follow. CHAPTERS: WATCH NEXT: ▶ Atomic Models Explained – https://youtu.be/v48u8hjqNBU ▶ Time Dilation and Einstein's Relativity – https://youtu.be/yuD34tEpRFw ▶ Isotopes Explained – https://youtu.be/oj2Wl83NytU KEY TOPICS COVERED: • Why silver tarnishes and turns black • Tarnish vs rust: sulfur vs oxygen reactions • Hydrogen sulfide and the formation of silver sulfide • Why gold is a noble metal that reacts with almost nothing • Relativistic effects in gold's electrons (Pekka Pyykkö) • Why gold is yellow and mercury is liquid at room temperature • Gold in electronics, phone connectors, and astronaut visors #Silver #Gold #Tarnish #Chemistry #Relativity #ScienceABC REFERENCES: 1. Pyykkö, P. (2004). "Theoretical Chemistry of Gold." Angewandte Chemie International Edition, 43(34), 4412–4456. https://doi.org/10.1002/anie.200300624 2. Pyykkö, P. (2012). "Relativistic Effects in Chemistry: More Common Than You Thought." Annual Review of Physical Chemistry, 63, 45–64. https://doi.org/10.1146/annurev-physchem-032511-143755 3. Norrby, L. J. (1991). "Why is mercury liquid? Or, why do relativistic effects not get into chemistry textbooks?" Journal of Chemical Education, 68(2), 110–113. https://doi.org/10.1021/ed068p110 4. Graedel, T. E. (1992). "Corrosion Mechanisms for Silver Exposed to the Atmosphere." Journal of the Electrochemical Society, 139(7), 1963–1970. https://doi.org/10.1149/1.2221162 SUBSCRIBE for more science explainers! https://www.youtube.com/channel/UCcN3IuIAR6Fn74FWMQf6lFA?sub_confirmation=1 Follow us: Twitter: https://twitter.com/abc_science Facebook: https://facebook.com/sciabc Instagram: https://www.instagram.com/scienceabcofficial/ Website: https://www.scienceabc.com Copyright Science ABC. For licensing inquiries: [email protected]