Comparing aluminium and magnesium, which has a lower first ionisation energy? Explain.
Aluminium has a lower first ionisation energy than magnesium. This is because it's outer electron is in a p-orbital in comparision to magnesium's outer electron which is in an s-orbital. The outer electron of Aluminum is therefore higher in energy and so less energy is required to remove it
AS
Related Chemistry A Level answers
All answers ▸Liquid ammonia (NH3) and water (H2O) both show hydrogen bonding, describe what a hydrogen bond is and what it is conferred by
Briefly describe the concept of electronegativity and explain why CCl4 is a non-polar molecule
Explain what happens to a crystal of iodine when it is heated (5marks)
Why are zinc and Scandium not transition metals?