Deduce which of Na+ and Mg2+ is the smaller ion. Explain your answer.

mg2+ would be the smaller ion this is because each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus. 

MC

Related Chemistry A Level answers

All answers ▸

Discuss the trend in first ionisation energies across the second period of the periodic table.


Explain the trend in first ionisation energy along period 3


The alkanes and the alkenes are examples of homologous series of compounds. Name 3 properties of a homologous series.


This question is about the ionisation energy of elements across a period. a) Define ionisation energy. b) Explain the trend in ionisation energy across a period.