Ionisation Energies Flashcards Preview

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Flashcards in Ionisation Energies Deck (4)
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Explain 1st drop in graph

Higher energy level
Outer electron further from nucleas
Due to more shielding
Less force of attraction


Explain 2nd drop in graph

Same shielding and orbital
Electrons paired in an orbital
Electrons repelling
Easier to remove


Why does ionisation energies increase across period

Smaller atomic radius
More protons
Stronger attraction between nucleas and electron


Why doe ionisation energies decrease down group

Bigger atomic radius
More shielding less force of attraction