Why isn't there a drop in Ionisation energy after group 1?

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RickHendricks
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#1
Report Thread starter 4 years ago
#1
Ok so we know that the ionisation energy drops in group 6 and it's because electrons are now taken from pre occupied orbitals, causing repulsion, so it's easier to remove electrons.

If this occurs due to the repulsion of the other electron, why is it not happening in group 2?

In group 2, you're essentially removing an electron from an orbital with 2 electrons already, so surely there would be repulsion from the other electron in the s orbital, hence being easier to remove an electron, however the text books state that it increases after group 1, and does not decrease, but decreases in group 6, when in reality we are looking at two similar situations.

EDIT: When I said group 2, I meant as in why does it not decrease after group 1, because when you're removing an electron from group 2 element, you're removing an electron from a preoccupied shell, meaning that there is repulsion from the other electron.
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Deliciate
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#2
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#2
Which exam board are you taking? In my textbook it says that there is a decrease between groups 2 and 3 and 5 and 6.
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Ugandan Prince
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#3
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#3
Do some revision.
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RickHendricks
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#4
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#4
(Original post by Deliciate)
Which exam board are you taking? In my textbook it says that there is a decrease between groups 2 and 3 and 5 and 6.
I meant as it, why does it not decrease after group 1, because you're removing an electron from a preoccupied shell.
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