Flashcards

Ionisation energy

I Shouldn't be awake Inglês 8 flashcards

Flashcards do conjunto (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

Descrição: FlashCards sobre Ionisation energy, criado por I Shouldn't be awake em 01-06-2018.
Criado por: I Shouldn't be awake
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