WebReactivity of halogens The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group. This is the opposite trend to that seen in the alkali … WebThe halogens are non-metals and when non-metals react with metals, they GAIN the electrons that the metals lose. As you move down group 7, the atomic radius get bigger (more protons, more electrons, more shells) and so the negatively charged electrons in the outer shell move further away from the positively charged nucleus.
Group 7 – GCSE Chemistry (Combined Science) AQA …
WebAs we descend Group 7, the reactivity decreases. For stability, the atom needs to have a full outer shell. Group 7 elements need to gain 1 electron to have a full shell. As a result, a... WebMelting points ________ down Group 7 because van der Waals' forces increase down the group. electronegativity A relative measure of the attraction that an atom has for a shared pair of electrons when it is covalently bonded to another atom. decreases, increases raye partners limited
What is the trend in reactivity in Group 1 and 7?
WebFeb 8, 2024 · The reactivity of Group 7 elements decreases down the group. The electrons in the outer shell move further away from the nucleus as we go down the group and the attraction force between the electrons and the nucleus become weaker and weaker. This weaker attraction in the larger atoms makes it harder to gain electron. WebJun 27, 2024 · The reactivity of Group 7 elements decreases down the group. The electrons in the outer shell move further away from the nucleus as we go down the group and the attraction force between the electrons and the nucleus become weaker and weaker. This weaker attraction in the larger atoms makes it harder to gain electron. http://passmyexams.co.uk/GCSE/chemistry/trends-in-halogens.html rayeow nus.edu.sg