- #1
KingCrimson
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Why does the nucleus' attraction to the outermost electron increase across a period?
I have been told that this is because each time you go across a period one step to the right, you add one proton and so there is more positive charge, but isn't it true that you also add one electron ? and so the positive charge even though it has increased is divided between more electrons and so the attraction of electrons by the nucleus stays the same ?
This could only mean that the positive charge's attraction to each electron is not divided, but this defies what my a level book says.
thanks in advance
I have been told that this is because each time you go across a period one step to the right, you add one proton and so there is more positive charge, but isn't it true that you also add one electron ? and so the positive charge even though it has increased is divided between more electrons and so the attraction of electrons by the nucleus stays the same ?
This could only mean that the positive charge's attraction to each electron is not divided, but this defies what my a level book says.
thanks in advance
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