In most cases, chlorine is more reactive than bromine. Although the bromine nucleus is more positively charged than the chlorine nucleus, the increase in the radius and the extra shielding in the bromine atom outweigh this factor, which means that an electron is more easily attracted into the outer shell of a chlorine atom than that of a bromine atom, so chlorine is more reactive. The chemical reactivity of bromine lies between that of chlorine and iodine. Chemical reactivity of non metals depends on their tendency to gain electrons. Watch the video here >>, Applying to uni? Yahoo er en del af Verizon Media. In most cases, chlorine is more reactive than bromine. Need tips :), No, I think predicted grades should still be used to make offers, Yes, I like the idea of applying to uni after I received my grades (PQA), Yes, I like the idea of receiving offers only after I receive my grades (PQO), I think there is a better option than the ones suggested (let us know in the thread! Please help me with this chemistry question?! Fluorine is a smaller than bromine therefore the cloud of electron density surrounding the nucleus is more compact. The bromine nucleus therefore has to attract an electron from further away, and this greater distance means the electron is attracted less strongly. Du kan give Verizon Media og vores partnere lov til at behandle dine personlige data ved at vælge 'Jeg accepterer'. Find your group chat here >>. The stability of completing the p orbital for fluorine is greater than for bromine which is the same as saying fluorine is more keen to obtain an electron than bromine. The bromine atom has one more electron shell than the chlorine atom. Du kan ændre dine valg når som helst i Dine kontrolfunktioner til beskyttelse af private oplysninger. ), Join Uni of Surrey for a Q and A on personal statements. Chemistry 9-1 GCSE equations and formulae, How to get an A* on A-Level Chemistry? This is shielding. Chlorine has fewer shells than iodine - chlorine has 2 and iodine has 4. Chlorine is much more electronegative than bromine, as it has a high charge to volume ratio. A cylinder of propane C3H8 contains 16.00kg of liquefied gas. The bromine nucleus therefore has to attract an electron from further away, and this greater distance means the electron is attracted less strongly. You can personalise what you see on TSR. Therefore, it participates in ionic compound formation easily. When chlorine (as a gas or dissolved in water) is added to sodium bromide solution, the chlorine takes the place of the bromine. Edexcel GCSE Chemistry C2 Tuesday 10th June, Chemistry OCR want to help you with your Q's, Last-minute A-level Chemistry revision: a crammer�s guide, Chronicles of a Joyful, yet Terrified Geek - a 2020-2021 GYG, PGCE placement advice needed about feeling like I’m not doing enough, The Cambridge College Hurt/Heal Game [part 2], DWP Work Coach vacancies July, Sept and Nov 2020, Official Psychology applicants thread 2021, BMAT 2021 entry discussions megathread (Updated 20th October), Official University of Bristol 2021 applicant chat, Imperial / Msc Computing (Security and reliability) - Personal Statement, EDEXCEL GCSE Chemistry 1CH0 - Paper 1 - 16th May 2019 [Unofficial Markscheme], How To Balance Cu + HNO3 = Cu(NO3)2 + NO + H2O, Edexcel AS/A Level Chemistry Student Book 1 Answers. Fluorine is higher in the group than chlorine so it is more reactive. This makes the radius (the distance from the nucleus to the outer shell) of the bromine atom larger than that of the chlorine atom. As chlorine is more reactive than bromine, chlorine will displace bromine fro a a solution of the bromide salt sodium bromide. Is it something to do with the fact that it has fewer electrons in the outer shell? Chlorine is more reactive than bromine because the chlorine molecule is has fewer shells in total therefore the electronic bonding is stronger. The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd. Register Number: 04666380 (England and Wales), VAT No. The bromine atom has one more electron shell than the chlorine atom. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE, I need help answering this question, Why is chlorine more reactive than bromide, Chlorine is in group 7 on the periodic table therefore has 7 electrons in its outershell,bromine is also in group 7 however is below chlorine and it goes up in reactivity in the periodic table. Thanks! Få mere at vide om, hvordan vi bruger dine oplysninger i vores Fortrolighedspolitik og Cookiepolitik. Actually, in nature, bromine exists as bromide salts instead of Br 2. © Copyright The Student Room 2017 all rights reserved. Dine kontrolfunktioner til beskyttelse af private oplysninger, Oplysninger om din enhed og internetforbindelse, herunder din IP-adresse, Browsing- og søgeaktivitet ved brug af websites og apps fra Verizon Media. Edexcel C2 exam - 'Unofficial Markscheme' 10/06/2014, Why is lead a product of lead bromide electrolysis, CHEMISTRY: Reactions of halogens and halides. It produces the bromide ion by taking up one electron. Yes - in group 7 (the halogens) of the periodic table the elements get more reactive as you ascend the group. Chlorine is in group 7 on the periodic table therefore has 7 electrons in its outershell,bromine is also in group 7 however is below chlorine and it goes up in reactivity in the periodic table. Vi og vores partnere opbevarer og/eller har adgang til oplysninger om din enhed via brugen af cookies og lignende teknologier for at vise personligt tilpassede annoncer og personligt tilpasset indhold, til måling af annoncer og indholds effektivitet, til indsigt om målgrupper samt produktudvikling. the tendency to gain electrons decreases on moving down the group because their atomic size increases. This occurs because chlorine has a higher electronegativity than bromine. What did you accomplish during the pandemic. The three common Group 7 elements are chlorine, bromine and iodine. Tell us a little about yourself to get started. Hope this helped xx goodluck. We know this by referring to the periodic table. Du kan også vælge 'Administrer indstillinger', hvis du vil have mere at vide og for at administrere dine valg. GCSE CHEM: Can someone explain electrolysis in simple words please? Bromine is less reactive than chlorine but more reactive than iodine. This occurs because chlorine has a higher electronegativity than bromine. This makes the radius (the distance from the nucleus to the outer shell) of the bromine atom larger than that of the chlorine atom. (Start typing, we will pick a forum for you), Taking a break or withdrawing from your course, Maths, science and technology academic help, Why is chlorine more reactive than bromide, "Explain why silver chloride is more soluble is ammonia than silver bromide", Using PCl5 as a chlorinating agent for alcohols. ... Fluorine is the most reactive element of all in Group 7. If Chlorine is reacted with with sodium bromide solution, then the mixture will turn brown; bromine has been formed. Chlorine has more electrons so repels a reacting electron with greater force than fluorine, making it less likely to react. Fluorine also has fewer electron shells than chlorine, so there are fewer electrons between the positive nucleus and the reacting electron to essentiallly block, or weaken, the electromagnetic attraction. We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out. Chlorine is a smaller atom than bromine, and therefore there are less shells of electrons to shield outer electrons from the nucleus, and also as it is smaller the outer electrons will be closer to the positive nucleus and so more strongly attracted. but they are in the same group, which is why I am confused. Chlorine is more reactive than bromine because the chlorine molecule is has fewer shells in total therefore the electronic bonding is stronger.
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