Group (periodic table) - Wikipedia
SOLVED:How many groups are there in the periodic table? How are they labeled?
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Carbon group element | chemical elements | Britannica
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All elements of the periodic table are arranged into 9 group
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:max_bytes(150000):strip_icc()/GettyImages-470784875-e7ea7f0da3d74a639d8e6a290afa000b.jpg "What Is a Group or Family on the Periodic Table?")
What Is a Group or Family on the Periodic Table?
