GCSE Chemistry - Halogens and Noble Gases #12

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

[@jadetea23]

your video was actually helpful

[@sricb3639]

very HelpfulTHANKS A LOT!!!you're my exam saver lol

[@antonthambiraja8762]

🤓

[@thecolombian8909]

amadeus is a fire name

[@user-iy8og6xs8y]

I really love how you explain clearly and with the helpful diagrams! Thank you

[@Cognitoedu]

Thanks for taking the time to say so Asi - it really helps us out :)

[@atsumihikari1086]

Same it really explains the hardest things so clearly

[@ramlahfareed6046]

This video was fantastic. I am running short of time for studying and this video really helped speed up the process.

[@Cognitoedu]

Hi Ramlah, thanks for leaving us a comment and really lovely to hear you found it useful :)

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this a random comment you made 3 years ago :)

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Almost 6 years now

[@Vanika22.]

Their videos makes my life a million times easier i have my chemistry GCSE tomorrow this helped loads 😭

[@xolaniii...]

same, good luck bro

[@aadimaini8727]

Bro same wish you the best of luck

[@amirahilleen7439]

good luck!!

[@almtz4442]

​@@amirahilleen7439 how did it go

[@almtz4442]

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[@brenofrancisco3745]

Your explanation is clear as day.

[@lnewlf9793]

I really love how u explain with the pictures and drawings thank you very much.

[@paigeroe1636]

Really gonna be getting me through my exams, thank you so much

[@maplekong7790]

After watching the videos and reading the comments, I always smile and feel like the world is a better place 😊

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your comment made me smile

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Corny ahh comment but I like it

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Bro u guys explain better than my teacher my teacher actually took 3 years 5lessons a week explain about : period tables,atoms bonding and all other things but I only know what she mean now cuz of you THANKSSS ALOTTT!!

[@khalidasad9967]

Thank you Cognito, your chemistry videos make it easy to understand chemistry

[@MidnightStorm4990]

Stuck in self isolation doing some chemistry and these videos are really encouraging me to keep studying

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Lol me 2

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Thank you❤❤ This is the most easiest video on KZbin❤❤ I just loved it❤❤❤❤

[@yashverma5204]

Thank you so much for making this video- it was really helpful and definitely taught me a lot!

[@Cognitoedu]

Hi Yash, really great to hear that - cheers! :)

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It is fontastics l love lt

[@freyadcoding8244]

I would like to tell you how grateful I am to you and this channel!! I have tons to learn and am running out of time, watching your videos gives me much more time to actually understand rather than memorize. You're voice is so calming, and ngl, I don't even realize I'm studying. I remember everything from your videos, because they are so well explained. I'm only 12 but I want to let you know that you basically have become my teacher. I've subbed and will always support.❤️ Saranghae💜 & Thank You🙏

[@kaibrigance2631]

Really well explained. Better than my own teacher, thank you so much! I will be subbing.

[@Cognitoedu]

Thanks Kai! We really appreciate the support!

[@Sara-779l]

Thank you soo much ,you made chemistry way more intresting and actually helped me to understand what going on.

[@mamostajamal1747]

every time this tops every other science video, amazing job.

[@Muhammadali-xn2bk]

This chemistry exams is gonna be pretty tough for me as its higher level. Cognito has again has helped. Pray i pass with good marks so I stay in set 1. Thanks for the video.

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[@Cognitoedu]

That's great Dharmasena, so glad to hear the videos and site have been helping! 🤩

[@SpectrumStudiosAWESOME]

Thank you for making this channel which is so essential for everyone. I appreciate for your hardworking and taking time for producing these vital lessons. We are so proud of you. May god bless you.

[@Cognitoedu]

Thanks Spectrum Studios, it's lovely to read comments like this 😊

[@letmeseemyfavshow]

Thank you so so much for this video. It really helped out on my chemistry IGCSE and guess what.. I passed!! 🎉🥳 This video is much appreciated, thank you, Cognito!❤

[@Cherry_and_Peach]

Congratulations!

[@iristuber2907]

Ya know what? This is just amazing! Next year I have my GCSE'S so I wanna prepare even more! And this is 100% useful! I absolutely love this and I'm taking notes from every video in case I forget or I just am not able to revise through my phone! Again thank you so much for this! Honestly you deserve more and I wish I could I give you something! I will get the grades I want for the payment of these videos!😁 PJ and of course I subscribed and liked this video!

[@Cognitoedu]

Thanks Iristuber 🤩 that's a great attitude! Good luck with your exams next year 🤞😊

[@Idkwhaturtalkingabou]

good luck next week g

[@loneyyou9922]

Good luck is it done?

[@iristuber2907]

@@loneyyou9922 ye I did 2 exams so far Bio and English literature. Bio wasn't that bad and English was absolutely amazing I even started to smile after the exam so that's a good sign. Chemistry is on Friday and got 3 exams to go after that!

[@loneyyou9922]

@@iristuber2907 hope you get good Marks. Am still in Grade 8 i have 2 year for igcse

[@mohammadmuhud3788]

U rlly have grown the last time I saw ur vids u were at 7k subs. Btw ur videos are really helpful ty

[@Cherry_and_Peach]

These videos are so helpful!

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Don't we just love online school

[@Cognitoedu]

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Well no and sometimes yes

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No

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[@rabgamers9330]

cramming for my GCSE's🙏🙏, your videos help me so much, thank you :)

[@qkhan418]

sameeeeee

[@rabgamers9330]

@@qkhan418 goodluck bro you've got this!!

[@its.emmaokay1489]

Very useful! I hope I do well in my chemistry test :)

[@Cognitoedu]

We hope so too 🤞

[@cartojohan]

how did you do?

[@iven0076]

i am an gcse student and this so helpful..... thank you so much

[@raheemtahir427]

was just about to skip this video since it wasn't a level , but you have given me my answer !! thanks brother, appreciate it a lot !!

[@Cognitoedu]

you're welcome mate, glad we could help

[@hamnasalman3778]

I understand this dude better in 5 mins than I ever did to my tr in year

[@aryamaleki4706]

thank you so much, you are explainig this so clearly and easily and your website is the best one for revisions, love that alot

[@jamjam5150]

Just wanted to let you know, on your website the question for wether or not Noble Gases are flammable or not has yes as the correct answer when in the video you say the opposite. Hope this helps :)

[@drycereal-c6f]

Thank u so much for this video daddy, it's really helping me study for my upcoming chemistry test This video is much appreciated. Thank u daddy❤

[@FavGlader]

DADDY??

[@drycereal-c6f]

@@FavGlader yes.

[@mattmoffatt4297]

Great vid much better than my actual teacher

[@cheeeeeeseh7550]

Thankies pitt! Again 🥳🥳🥳

[@TemaNgwedze]

Who else is here having their gcse ezams😢❤

[@harsonpakeer7499]

thanks for the vids, really love the animations :D

[@Cognitoedu]

Ah thanks Harson, glad you like them 👍

[@hardemkael2708]

I sooo needed that for my upcoming quiz thank you so much sir! ❤

[@AbdulrafyMumtaz]

Very helpful and clearly explained 🎉

[@mohammedirfaan3703]

Really good explanation.

[@meyass4163]

thank you so much ! you explain in a way that in such concise wording its perfect.

[@sohasaeed7162]

So nice and you explained very well Thanks for helping me for my final exams

[@Cognitoedu]

It's our pleasure 😊

[@AbdullahShoaib-e3m]

Yes i am the latest comment and will comment every year

[@priyankaiyer9918]

literally so underrated

[@lovelylovely2401]

Very clear and helpful explanation with diagrams

[@anuththararukshani8370]

In exams, should we write chlorine displaces bromine or bromide? This is where I'm confused.

[@umairahmed5376]

Same here

[@Silly_emi]

Chlorine displaces bromine because it is higher up on the reactivity series and there for taking it's place

[@zainmohammed2652]

WOW your videos are really good :)

[@Cognitoedu]

Hey Zain thank you for the support and comment mate - really appreciate you taking the time as it boosts the videos up the rankings 🥂

[@gojousatoru6821]

Is it possible that you can clarify about the colours of the halogens in solid liquid and gas forms?

[@electronx5594]

Thx alot! Saved me for my mid-term

[@SolomonDessie-m6o]

It is very nice explanation and keep it up Why halogen high reactivity than all element please clear it

[@ice7677]

Just commenting to help with the youtube algorithm...

[@ziad-123-r9d]

probably one of the hardest lessons ive taken

[@alexisspark4892]

0:50 Guys, ignore this part, I listened to him and it came up on my exam yesterday 😭

[@undisclosed_10]

What was the question about?

[@hakimelfatihh4993]

thanks man rlly helped me out

[@redraptor1562]

Really helpful, thanks!

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This video is nice 👍

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this video is better than the book . good

[@nesreenaziz9157]

love your video thanks for the help!

[@Cognitoedu]

You're so welcome - thanks for taking the time to let us know!!

[@Vanitasc]

What does the (g) and (aq) mean in 3:41

[@Hj-ck3uk]

The state of the elect g is gas aq is aqueous so dissolved jn water and s would be solid

[@davidcecil6417]

love the video mane. Thank you

[@unlisted538]

I’ve been set a ton of these videos for a exam i in England in year 9

[@savagex_2008]

Nice video

[@Cognitoedu]

Thanks!

[@savagex_2008]

😃

[@monfernofan3142]

Another helpful video

[@hassank6945]

it is a lovely way to teavh thanks cognito

[@jeanneeb1267]

Are displacement reactions always only between halogens?

[@Cognitoedu]

No they can be between other things too, like if a more reactive metal displaces a less reactive one :)

[@mesfintwins3843]

nice that the way of teaching

[@harveytinseltin3559]

So what does 1 part Floradine 3 parts Clorine, and 1 part Krpton do?

[@Cognitoedu]

I can honestly tell you I've got no idea...

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[@TeodorŠkorpil]

Hey, could you cover the Kognity topics?

[@umairbin-islam2007]

I was working so hard for doing Group 7 Halogens.

[@Clairolover20]

He is way better than my chemistry teacher

[@aadimaini8727]

Tysm for this I needed it a lot

[@djeririsovic]

Could anyone explain to me how the boiling/melting point of halogens increases? I have been trying to understand for hours and I think there's maybe a block in my brain, I really don't understand.

[@R4qayyah]

Because when you go down the group the intermolecular forces of attraction become stronger and therefore require more energy to overcome.

[@sync924]

for noble gases is it only for boiling or also melting pionts

[@mama.yasmeen]

also melting poins

[@talamutaz1]

WHY CANT U BE OUR CHEM TEACHER/U R SO GOOD AT EXPLAINING

[@definitelyaidenwaiden]

I'm years away from this but owell

[@Cognitoedu]

Nothing like starting 10 years too early amirite?

[@cool_crazman7861]

A sense a great scientist in the making

[@bahjatullah1156]

I'm self studying gcse chemistry. Can I depend on the video ( the chemistry playlist) to sit for the exam next year

[@arzishsohail9880]

Thank u ♥

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this guy is saving me man wrd

[@beaans._]

so helpful! thank you!

[@bahjatullah1156]

Is it usable for syllabus 2023 - 2025

[@Khansep777]

How do you relate this to other groups?

[@swapnabhargawisriramula7310]

Very helpful information. Thanks! (:

[@krodax3639]

very good video!

[@iamproudpro1433]

thank you sir

[@Anto95087]

Thanks i needed this

[@softiebearunu9125]

Could u just explain the covalent bond again but with fluorine in text?

[@izzethayat5743]

I have Igcse 😮

[@atsumihikari1086]

This helped me a lot

[@yaliwebanda8113]

Why are halogens sat formers?

[@something6940]

hi i still dont understand the difference of reactivation in group 1 and 7. can you explain further?

[@KyojinNoEren]

what do you mean by reactivation?

[@hadi-gl6qx]

In group 1, the atoms that have more shells are more reactive because it is easy for the atom to get rid of it’s outer shell But in group 7, the atoms that have more shells are less reactive because they are further away from their main mass at the nucleus, making it harder to attract that last electron, and make a full shell. Still useful after 2 months?

[@KashafNaeem.]

Where is video for group 2,4😭

[@thinginground5179]

0:44 Iodine be like: Heh. Nohnohnoh! Me goood...

[@plutosstrawberries]

i dont understand as to why the reactivity decreases as you go down

[@plutosstrawberries]

is it becuase, due to shielding, and the shells increasing as you go down, the nucleus finds it hard to gain an electron, and making the outermost shell weaker for each element?

[@Cognitoedu]

asian rat - essentially yes! Halogens are always looking to gain an electron to complete their outer shell. So, as you say, they’re trying hard to pull electrons off of nearby atoms. As you go down the group, the element has more shells, and so, as you said, the halogen’s nucleus can’t exert such a strong pull on the electrons of nearby atoms, because those electrons are always further away (because all the halogen’s shells are getting in the way). I hope this confirms what you’ve already said! :)

[@plutosstrawberries]

@@Cognitoedu thank you!!

[@sherlykapoor8304]

Thx bro☺️

[@Sabit41]

0:13 Atomic number of neon is 10

[@NathanDeSilva-i9b]

Yeah , so?

[@fireeditz2022]

Ig you're confusing with atomic number and atomic mass

[@uzmasalman6497]

Francium(FR)

[@arfan3802]

"If you can't explain it simply, you don't understand it well enough" - Albert Einstein

[@karimehamel5949]

Very goood tnx 💓😍

[@Cognitoedu]

You’re very welcome!! Thanks for taking the time to leave us a comment too, it’s really appreciated :)

[@kiannuttall4298]

Year 9 northgate?