Webtrend in boiling point down group 7 - increases - more electrons - stronger London forces - more energy needed to overcome forces the halogens are... oxidising agents chlorine solution in water pale green bromine solution in water orange iodine solution in water brown Recommended textbook explanations Chemistry: Matter & Change, Florida WebAs we go down a group the reactivity of non-metals decrease. This is because : The number of valence shells increases. The force with which the nucleus holds the electrons decreases. ... As you go down group 7, the atomic radius increases and it becomes more difficult to attract another electron. What is the reactivity of Group 2? 1.3.
Why does reactivity *increase up* group 7, but *increase down
WebAs with group 1 and 2, the trends in properties and GENERAL reactivity in group 7 can be explained by their electronic configuration: The reason that melting and boiling points increase down the group is because the intermolecular forces between the halogen molecules (e.g. F 2, Cl 2, Br 2) get stronger down the group. 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... crystal isles metal cave
Group 7: Halogens topic Flashcards Quizlet
WebApr 6, 2024 · The reactivity of halogen towards halogen decreases as we move down group 17. Therefore, their acidity also decreases as we move down the group. In dark H₂ + F₂→ 2HF In sunlight H₂ + Cl₂ → 2HCl Δ H + Br₂ → 2HBr Δ H₂ + I₂ → 2HI Reaction with Oxygen Halogen combines with oxygen to form halogen oxides, but they are not steady. WebMar 18, 2011 · What happens to the reactivity of group 7 as you go down the groups? Group7 element reactivity decrease down the group. How does the reactivity of group 1 metals change as you go down group 1? WebReactivity decreases down the group. This is because group 7 elements react by gaining an electron. As you move down the group, the amount of electron shielding increases, … dwight foulkes