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Use the portion of the periodic table shown below to answer the questions. a portion of the first three columns of the periodic table is shown. (column one from top to bottom -11 sodium 22.990, 19 potassium 39.098, and 37 rubidium 85.468. column two -12 magnesium 24.305, 20 calcium 40.078, and 38 strontium 87.62. column three -21 scandium 44.956 and 39 yttrium 88.906. part 1: name two elements that have the same properties as potassium (k). (4 points) part 2: determine the number of protons, electrons, and neutrons present in an atom of magnesium (mg). explain how you determined your answer using complete sentences. (6 points)
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Use the portion of the periodic table shown below to answer the questions. a portion of the first t...
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