Why is chlorine more reactive than iodine?

Chlorine has fewer shells than iodine - chlorine has 2 and iodine has 4. We know this by referring to the periodic table. This means its outer electrons are closer to the nucleus.Because they are closer - outer electrons feel more attraction towards the nuclear charge. Chlorine's nucleus can attract outer electrons more easily as there is less shielding of the nucleus.Chorine can therefore gain an electron more easily which makes it more reactive.

AS
Answered by Antonia S. Chemistry tutor

9601 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Bromine has an atomic number of 35 but has two stable isotopes- bromine-79 and bromine-81. Given that 51% of bromine atoms are bromine-79 and 49% are bromine-81%, work out the relative atomic mass of bromine to the nearest whole number.


What are the half equations representing the changes of Pb2+ and Br- in the electrolysis of lead bromide?


How would you correctly carry out a flame test, and what colour would potassium yield, and what colour would lithium yield?


How do you know which chemicals are formed at the electrodes in the electrolysis of aqueous solutions?


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