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18-11-2020
Chemistry

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Arsenic has one stable isotope:75/33 As.

How many neutrons and protons are in a stable arsenic atom?

A. 33 neutrons and 42 protons B. 33 neutrons and 75 protons

C. 42 neutrons and 33 protons

D. 75 neutrons and 33 protons

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18-11-2020

The answer is 42 neutrons

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