Flashcards
Ionisation energy
Cards in this deck (8)
- 1First IE definitionE required to remove one electron from each atom in one mole gaseous atoms to form one mole gaseous +1 ions
- 2Factors affecting ionisation energyAtomic Radius
Nuclear Charge
Electron shielding - 3Atomic radius explainedGreater the distance between nucleus and valence electrons, the weaker the force of nuclear atraction
- 4Nuclear chargeMore protons in nucleus of an atom, greater the attraction between the nucleus and the OSE
- 5ShieldingInner-shell electrons repel outer-shell electrons, reducing the attraction between the nucleus and the OSE
- 6At which point to 1st IE drop?Beryllium to Boron
Nitrogen to oxygen - 7Explanation behind Beryllium -> Boron2p sub-shell in B has higher energy than 2s sub-shell of Be
Requires less energy to remove electron from 2p than 2s - 8Explanation behind N->O dropMarks the start of electron pairing in p-orbitals of the 2p sub-shell
Repulsion of paired electrons in one of 2p orbitals makes it easier to remove an electron from O than singly occupied N orbital electrons
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- Flashcards on Ionisation energy, created by I Shouldn't be awake on 01/06/2018.
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- I Shouldn't be awake
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