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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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ilindsey05 ilindsey05
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12 years ago
The whole question is "How do you know the atomic number and how does that help you find the number of neutrons?
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#1
12 years ago
The atomic number, electrons, and protons are the same. So you would take the atomic mass and subtract it by the atomic mass.
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#2
12 years ago
The Atomic Mass= # of neutrons + # of protons.
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#3
12 years ago
If you know the atomic mass AND the atomic number, you can pretty much ignore the values after the decimal in the mass (electrons have very tiny mass) and subtract the atomic number from the atomic mass and get the number of neutrons.
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