AS Chemistry - Definitions Term 2 exams

Ionisation energy is the minimum energy required to remove one electron from each atom or ion in a mole of atoms or ions in the gaseous state. This is an endothermic process.

Ideal gases move continuously with no attractive forces between the particles with perfectly elastic collisions.  The space between the particles is infinitely larger than the size of the particles, which have negligible volume.  Gases behave most ideally at high…