Explain some trends when going down Group 7 of Halogens in the Periodic Table

Going down Group 7 in the period table, the mass number increases, so the element becomes heavier. The period increases so the number of shells increase, though they all still require one electron to fill its outer shell. The melting points and boiling points of the halogens increase as you go down the group. This is because larger molecules within the same group experience greater intermolecular interactions with each-other, & more energy is required to overcome the interactions between neighbouring atoms. Going down the group, the state of the elements changes from gas to liquid to solid, to indicate the change in melting and boiling points as you go down the group.

Answered by Savion Courtney B. Chemistry tutor

10967 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

How does increasing the temperature of the reactants in a reaction affect the rate of said reaction?


Ethane is an organic compound. Please (a) write down the molecular formula of ethanoic acid and (b) verify the type of organic compound ethanoic acid belongs.


Name a test for a C=C double bond


What happens at the anode during electrolysis?


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