File:Na_(Sodium).jpg · Wikimedia Commons · See Wikimedia Commons
Also known as element 11, 11Na
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Sodium is a soft, silvery-white chemical element (symbol Na) that is highly reactive and belongs to a group of metals called alkali metals. It's the sixth most abundant element in Earth's crust and exists naturally in various minerals and salts, making it an important part of our environment and everyday life.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).