Here are some questions about the elements, their properties, and periodicity. in each case. the correct answer is the name of an element (one of the two given). write the answer in the appropriate space at right, placing the first letter in the first blank. there are more than enough blanks to fit either element name, so the number of letters in the name cannot be used as a clue. when the puzzle is complete, the periodic law will be displayed in the shaded column. record the periodic law at the bottom of the page.
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