ionisation energies Flashcards
1
Q
What is ionisation?
A
the removal of one or more electrons
2
Q
What is the first ionisation energy?
A
the energy needed to remove one mole of electrons from one mole of gaseous atoms.
3
Q
What type of process is ionisation?
A
you have to put energy in to ionise an atom or molecule, so it’s an endothermic process.
4
Q
What is the equation for the first ionisation of oxygen?
A
O(g) → O+(g) + e- 1st ionisation energy = +1314kJ mol-1
