Element/Compound/Mixtures/Atoms/Periodic Table

Scale used to weigh metals on the periodic table, thus the name, Atomic Metal Unit of measurement. A universal way to weigh stuff. 22. Horizontal rows on the periodic table are called. Groups. Families. Periods. intervals. 23. Periods increase in atomic number from. top to bottom. diagonally. left to right. chemical reactions. 24. ................
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