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Use the periodic table to determine the number of protons in an atom of arsenic (as)
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Use the periodic table to determine the number of protons in an atom of arsenic (as)

User Miroo
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3 votes

Answer:

33

Step-by-step explanation:

I took the test

User William X
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33 protons (hint: this is also the same number of electrons unless its an ion). You can always tell how many protons it contains by looking at the atomic number in the upper left corner.
User Ehp
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