Search results
Groups in the periodic table - AQA Group 7 - chemical properties. Elements in the same group of the periodic table show trends in physical properties, such as boiling point.
Physical properties of the group 7 elements Mendeleev made an early periodic table. In the modern periodic table, elements are arranged in order of atomic number in periods and groups.
Groups in the periodic table - AQA Group 7 - chemical properties. Elements in the same group of the periodic table show trends in physical properties, such as boiling point.
A halogen displacement reaction occurs when a more reactive halogen displaces a less reactive halogen from an aqueous solution of its halide. The reactivity of Group 7 elements decreases as you move down the group. You only need to learn the displacement reactions with chlorine, bromine and iodine.
In chemical reactions, atoms of Group 7 elements gain one outer electron making just full electron shells. Going down Group 7, the force attracting an extra electron reduces with the distance of each shell from the nucleus. Halogens are elements, halides are salts.
The group 7 elements are highly reactive non-metals that need to gain an electron to form a 1- ion and achieve a full outer shell of electrons.
People also ask
What is Group 7 halogen chemistry a-level?
How does Group 7 reactivity affect atomic mass?
What happens if a group 7 atom goes down?
Why does the atomic radius of Group 7 increase down the group?
What is reactivity in Group 7?
How do electron structures determine the properties of Group 7 elements?
Mar 27, 2024 · Revision notes on 2.3.2 Chemical Properties of Group 7 for the AQA A Level Chemistry syllabus, written by the Chemistry experts at Save My Exams.
