Why does the reactivity of group 7 elements decrease down the periodic table?

As you go down the group, the outer electrons are further from the nucleus, this leads to a reduced attraction between the negative outer electrons and positive nucleus. Also, as there are more electrons, the inner shells actually repel the outer most electrons as they have a common charge. Due to the weaker attraction of electrons to the positive nucleus, it is harder for the atom to gain one electron to complete their outer shell so they become less reactive as more energy is required to complete the electron shell

DC
Answered by Dhiren C. Chemistry tutor

11533 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

What is the difference between oxidation and reduction?


What is oxidation?


Aspirin C9H8O4 is made when salicylic acid C7H6O3 reacts with ethanoic anhydride C4H6O3 . The equation for this reaction is: C7H6O3 + C4H6O3 → C9H8O4 + CH3COOH Calculate the maximum mass of aspirin that could be made from 100 g of salicylic acid.


Explain why increasing the temperature of a reaction increases the rate of the reaction (2)


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