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 ▸

Describe the trend in the reactivity of group 2 elements with chlorine as you descend down the group.


What type of reaction do haloalkanes undergo with nucleophiles?


Describe and explain the trend in first ionisation energy down group 2 of the periodic table.


What is the geometry of a ClF3 molecule? (AQA Unit 1 2015 1d)