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WebTake this chemistry quiz at encyclopedia britannica to test your knowledge on the different chemical elements wthin the periodic table. Search Britannica Click here to search Browse Dictionary Quizzes … WebIns and Outs of Chemistry Question: "Atomic number" refers to the number of what in an atom? Answer: The atomic number is the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of … how to take off hot glue
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