TERM 1
Ionization Energy and
Trend
DEFINITION 1
Ionization energy (I.E.) is the change i n energy when one mole of
electrons is REMOVED from o ne mole of atoms in the GAS phase.
(Delta H is usually positive) The trend is that I.E. g ets larger as you
move RIGHT or UP on the periodic ta ble (smaller atoms are harder
to remove electrons from -Exception s: 1/2 filled and filled subshells
are more stable (harder to remove e lectrons from)
TERM 2
Electron Affinity and
Trend
DEFINITION 2
Electron Affinity (E.A.) is the energy c hange when 1 mole of
electrons is ADDED to 1 mole of atom s in the GAS phase. (Delta H
is usually negative) The t rend is that the 1st electron energy
decreases as you move RIGHT or UP on the periodic table -
Exceptions: Noble gases, 1/2 filled and filled subshells (smaller
atoms release more energy when a n electron is added)
TERM 3
Paramagnetic
DEFINITION 3
An atom is paramagnetic (i.e. it will respond to a magnetic
field) if there are unfilled spots on its electron configuration.
TERM 4
Diamagnetic
DEFINITION 4
An atom will be diamagnetic (doesn't respond to a magnetic
field) if all spots on its electron configuration are full.
TERM 5
Metallic Character
DEFINITION 5
Larger Atoms are more metallic
