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Use the periodic table to determine the atomic weight of arsenic (As).

A. 18
B. 40
C. 58

User Wurde
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2 Answers

5 votes
None the answer is 74.92 u see the word arsenic under should be numbers and that’s your weight always
User Lariza
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2 votes
the atomic weight is none of them its 74.92
User Marthyn Olthof
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