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Elements O, S, Se and Te are usually kno...

Elements `O, S, Se` and `Te` are usually known as____.

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To answer the question regarding the elements O, S, Se, and Te, we will follow these steps: ### Step 1: Identify the Elements The elements in question are Oxygen (O), Sulfur (S), Selenium (Se), and Tellurium (Te). ### Step 2: Determine Their Group These elements belong to Group 16 of the periodic table. ### Step 3: Common Name for Group 16 Elements Group 16 elements are commonly known as the "Oxygen Family." ### Step 4: Alternative Name Another name for these elements is "Chalcogens." This term is derived from the Greek word "chalkos," which means copper, as many copper ores are found in the form of oxides and sulfides. ### Final Answer Therefore, the elements O, S, Se, and Te are usually known as **Chalcogens**. ---
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