Explain why first ionisation energy decreases down a group.

As you go down the group, ionisation energy decreases because there are more electron shells and shielding increases, therefore the outer electron is further away from the positive nucleus and is less strongly attracted to it.

IA
Answered by Ifsa A. Chemistry tutor

2639 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

The Aldehyde CH3CH2CHO (A) reacts with HCN to give a racemic mixture, name the compound CH3CH2CH(CN)OH (B) formed and explain why we get a racemic mixture and how we could differentiate between two different enantiomerically pure solutions of B


What is chirality?


BeCl2 has a linear shape with a bond angle of 180 degrees, where as H2O has a bent shape with a bond angle of 104.5 degrees. Explain why these molecules have different shapes despite having the same general formula of AB2.


What is meant by the term amphoteric? and give an example of a reaction using NaOH that could be used to distinguish between a solution of amphoteric AlCl3 and non-amphoteric MgCl2.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences