I've started Chemistry tuition and I've never felt this good. After a few weeks of bottling up, I poured out all of the questions which I need answers to and WAALA! I've got the answers. Tomorrow is the re-test on Mole Concept, hope I'd do better than my previous one. (:
An update on IONISATION ENERGY.
1st I.E. = X(g) ----> X+(g) + e-
2nd I.E. = X+(g) ----> X2+(g) + e-
ETC.
Definition of 1st I.E. > removal of one mole of electrons from one mole of gaseous atom to form one mole of singly-charged gaseous ion
Definition of 2nd I.E. > removal of one mole of electrons from one mole of singly-charged gaseous ion to form one mole of doubly-charged gaseous ion
THINGS TO NOTE:
1) the state symbol (g) is important! When talking abt I.E., everything must be present in the gas state.
2) I.E. measured in kJ/mol
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