Describe the trend in ionisation energies down group 1.

Ionisation energies decrease going down group 1, firstly since the number of shells in the atom increases so the atomic radius is increased. There are also more electrons between the positively charged nucleus and outer electron causing increased shielding. These decrease the nuclear attraction to the outer electron so less energy is required to remove it.

Answered by Chemistry tutor

2840 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Analysing IR spectrum.


Why can endothermic reactions occur spontaneously if the entropy change is negative for a cooling process?


Calculate the mass of sodium amide needed to obtain 550 g of sodium azide, assuming there is a 95.0% yield of sodium azide. Give your answer to 3 significant figures.


Pure water has a boiling point of 100 °C and a freezing point of 0 °C. What is the boiling point and freezing point of a sample of aqueous sodium chloride?


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