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

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asked Mar 11, 2018 41.8k views

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Ehp · Answer 1 · 2018-03-15T22:43:53+0000

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.

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

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