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An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom?
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An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom?

User Davidbuzatto
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1 vote

Answer:

32

Step-by-step explanation:

i just know bc i already answered this question... and i dont have an explination

User Vinit Sankhe
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