Uploaded January 2024 | Updated September 2026, 1 day ago
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In this video, we look at the reactivity of the group 7 elements (halogens). First we look at how the group 7 elements get less reactive as we move down group 7. This is due to how easily the halogen atom attracts an electron into the outer energy level. We look at how this depends on the radius of the atom and the amount of electron shielding. Next we explore the displacement reactions between halogens and halide ions. I show you how to determine the products of a displacement reaction, based on the reactivity of the different halogens.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
Teachers, to get PLUS for your school, email schools@freesciencelessons.co.uk
In this video, we look at the reactivity of the group 7 elements (halogens). First we look at how the group 7 elements get less reactive as we move down group 7. This is due to how easily the halogen atom attracts an electron into the outer energy level. We look at how this depends on the radius of the atom and the amount of electron shielding. Next we explore the displacement reactions between halogens and halide ions. I show you how to determine the products of a displacement reaction, based on the reactivity of the different halogens.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
