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WHY IS IT THAT WHEN WE SAY MASS NUMBER IS EQUAL TO PROTON NUMBER PLUS NEUTRON NUMBER IS NOT CORRECT?

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  • WHY IS IT THAT WHEN WE SAY MASS NUMBER IS EQUAL TO PROTON NUMBER PLUS NEUTRON NUMBER IS NOT CORRECT?


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Learn more about atomic number and mass number in the Boundless open textbook.
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Positive: 72 %
ATOMIC NUMBER AND MASS NUMBERS. ... contain one proton and have an atomic number of 1. ... An element's or isotope's mass number tells how many protons and ...
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Positive: 69 %

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What is a neutral atom? ... Why doesn't he just say "..present in an ... which the total number of electrons is not equal to the total number of ...
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Positive: 72 %
We say these atoms are isotopes of each other. ... Proton / neutron . A: Proton, B: Electron. ... mass number and the number of electrons: ...
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Positive: 67 %
Each proton and each neutron has a mass of very nearly 1 dalton. ... The so-called mass number is not a mass; ... This is just one of many reasons why we say:
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Positive: 53 %
The atomic mass number is equal to the number of protons plus neutrons, ... a proton has a positive charge and a neutron has no ... We say that hydrogen ...
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Positive: 30 %

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