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How many neutrons are present in an atom with atomic number 9 and mass number 19?​
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How many neutrons are present in an atom with atomic number 9 and mass number 19?​

User Shantr
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10 what Eddie said is correct
User James Santiago
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Answer:

10 neutrons

Step-by-step explanation:

N=Z-A ie. number of neutrons=mass number-atomic number

N=19-9=10

User Taylor Lafrinere
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