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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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lfbella lfbella
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11 years ago
The number of protons and electrons are the same. Therefore, I take the atomic weight, round to the nearest whole number and subtract the number of protons (atomic number) to get neutrons. Is this correct?
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#1
11 years ago
yes
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#2
11 years ago
Number of Neutrons = Mass Number - Atomic Number
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#3
11 years ago
Pretty Much.
You Take the Atomic Number(right corner) and subtract it from the Atomic Mass. For Example, i had yttrium
the atomic number was 39 and the mass was 89. the proton and electron is 39 and neutron was 50,(89-39)
im 11 in 6th grade i had to learn this
and yes thats right
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