Definitions Flashcards
1
Q
Ionisation Energy
A
The energy required to remove a valence electron from an atom/ion from 1 mole in gaseous state.
2
Q
Atomic Radius
A
Distance between the centre of the nucleus and the outer most electron.
3
Q
Electronegativity
A
Measure of an atom’s ability to attract a bonding pair of electrons.
4
Q
Octet Rule
A
Achieve 8 valence electrons (stable).
5
Q
Core Charge (Effective Nuclear Charge)
A
Attractive force felt by the negative valence electrons towards the positive nucleus.
6
Q
Shielding Effect
A
Repulsion felt by outer electrons, from inner shell electrons (like charges repel).
