Ionisation Energies Flashcards Preview

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Flashcards in Ionisation Energies Deck (4)
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1

Explain 1st drop in graph

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

2

Explain 2nd drop in graph

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

3

Why does ionisation energies increase across period

Smaller atomic radius
More protons
Stronger attraction between nucleas and electron

4

Why doe ionisation energies decrease down group

Bigger atomic radius
More shielding less force of attraction