What is periodicity?
Periodicity is the trend in chemical and physical properties of the elements across each period of the periodic table.All elements in a period have the same number of shells, all elements in a group have the same number of electrons in their outer shells.Atomic radius decreases across a period and ionisation energy increases.However, there is a drop in ionisation energy between groups 2&3 and 5&6
JA
Related Chemistry A Level answers
All answers ▸How does temperature affect the position of equilibrium if the reaction is exothermic?
What are 'Rate equations' and why are they useful?
What is the basis of an NMR spectrum?
How can you tell if a reaction is endothermic or exothermic? Describe a way of determining if a reaction is exothermic or endothermic using simple laboratory equipment.