How many neutrons are in an atom that has a mass number of 75 and contains 35 protons?
A)40
B)35
C)75
D)can't tell

Name: How many neutrons are in an atom that has a mass number of 75 and contains 35 protons? A)40 B)35 C)75 D)can't tell
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Quizplus · Accepted Answer

The number of neutrons in an atom is calculated by subtracting the number of protons from the mass number. For an atom with a mass number of 75 and 35 protons, the calculation is 75 - 35 = 40 neutrons.

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