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Determine the mass number and atomic number of neptunium (Np) Please see the Attachment!
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Determine the mass number and atomic number of neptunium (Np)

Please see the Attachment!

Determine the mass number and atomic number of neptunium (Np) Please see the Attachment-example-1
User Ryan Townsend
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The total charge on the right-hand side is 94-1=93, so the atomic number is 93.

The total mass on the right-hand side is 239+0=239, so the mass number is 239.

User Dmitry Avgustis
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