Class 11 Chemistry Ch 3 | Classification of Elements | Atomic Radius | Ashu Sir

[@STUDY-yb9yq]

8:15 yes sir covalent radius is less than accurate radius bcoz we are not find the accurate radius by using formula - x/2 14:12 electron kamm honge sir

[@ravinderSingh-nw2km]

yes

[@devsharma6789]

14:00 sir AL+ will be smaller kyuki ek electron lose karne se effective nuclear charge badh jayega aur nucleus electron ko apni taraf aur zor se pull karega

[@abhinav182]

19:15 The size of anion atom is always greater than its Parental atomic size

[@Benzene42]

14:00 effective nuclear charge increase

[@artillo208]

Aaj hi exam h at 7:30 and studying this chpt at 2:30 (I'm legit cooked) but still having "nah I'd win"" mindset 😂

[@rishabhsamant6801]

8:40 Ligament le lphde😂😂op sir😂😂

[@jackel9376]

14:00 as electrons reduces and protons remains same ,therefore attraction towards proton increases and the atomic radius decreases

[@The9vines]

I love you sir ❤️❤️❤️😀😀😀 You are next level teacher

[@Krishnaapapa]

14:12 because of less electrons the force of attraction of e will increase with nucleus

[@factonn895]

BUT WHEN WE MOVE FROM LEFT TO RIGHT IN TRENDS THE SHELL SIZE DECREASES. JUST OppOSITE

[@rachnaagrawal35]

19:02 anion is bigger than parent atom because it is made by gain of electrons (or it has more electrons) and effective Nuclear charge decreases and shielding effect increases.

[@swatipal7649]

14:02 Because Z effective increase and electron decrease

[@madhuriverma-nx1te]

33:57 atomic radius of Nobel gases doesn't follow the trend across a period as they have large atomic radius is due to the inter-electronic repulsion is increased 😊

[@VolleyVisioner]

14:00 attraction between nucleus and electron will increase so the atomic radius will decrease

[@shivani....813]

Sir thanks for fabulous session.. I requested to you plz provide only numerical session.. of phy & chemistry..plz sir our half-year is near... 🙏♥️

[@piyushsunori8050]

19:07 radius of anionic atom will be greater than the parental atom because of decrease in effective nuclear charge due to gaining e-

[@nilakshitiwari573]

14:00 because in parental atom(neutral atom) 13 proton hold 13 electron but in the case of Al+ (cation) 13 proton hold only 12 electron proton is more so it's hold more force of attraction so size will decrease and become less size from parental atom😊

[@athleticfreak1963]

Good answer bhai 🎉

[@lakshaysharma2929]

14:00 Al is greater than the the Al+ because the the atom is always -ve and proton is positive so if the outer most elements are more size is small

[@samyakgrao]

8:12 yes sir. Covalent radius is less than actual radius..

[@nitesh25k]

Sir apke jesa koi master nhi he 👍😊👍 Thankyou sir ji ❣️

[@Lucifer_feanix]

9:10 greater than parental atom because effective charge will reduce (no.of protons are less as compared to no.of electron so it will be difficult to hold that is why size will increase )

[@Kianaa529]

25:21 Due to electrostatic force of attraction between kernal and electron in void.

[@LaxmiKumari-yp3yk]

8:15 Yes covalent radius actual radius se Kam hoga

[@thetruegamer6779]

19:07 size of anion will be greater than its parental atom because anion is negative charged and in previous cation radius when there is lose of electron size is decreased due to effective nuclear charge hence simillarly now when it will gain an elctron the size of anion will be more than its parental atom

[@sevantadariya6705]

8:16 yes sir covalent radius is less then actual radius

[@jayamahajan5782]

Sir aap bahot achha padhate ho. You are a brilliant teacher😊

[@vinodchandra4187]

14:06 beacuse the force of attraction of nucleus remains constant and since it is a cation it will have less no. Of atom in the outermost shell,so it will be small in size

[@deepanshurawat9439]

sir you are the best teacher ever I seen in my life just keep it up

[@Kunal-q5x]

Bahut simple sir, aluminum plus Mein electron kam hone se attraction force badh jayenga so atomic radius kam ho jayengi Kyunki atomic radius atomic size wali property show karti hain

[@PranavKhankriyal]

Fun fact:- Sir's lecture Seems normal even on 1.5x speed

[@sahilnawab2101]

True

[@Kitzzz07]

😂😂

[@ShivendraSingh-o4z]

even at 2x

[@PriyanshuVerma-fz9vy]

true

[@grishneupane4103]

how can i watch video in 1.5x can you please tell me

[@yasirarfat3243]

8:21 covalent radius is less than actually actual because I’m covalent bond atoms overlap each other which mean they came come from actual radius an distance bw them will not be 2*r

[@Lavisha-ij1py]

13:55 MY EXPLAINATION: number of electrons decreases then the force of attraction should pull cation shell more so size should shrink

[@PRAMODKUMARTANK]

14:00 kyukiouter most shell me 3 hai joki repel krenge nucleus ko

[@ShivpalPrajapati-n2l]

Namste sir ji 🙏🏼🙏🏼🙏🏼🙏🏼 Very nice class 😊😊😊😊

[@shadowgamer1047]

Sir, Ionic radius find karne ke liye Half of distance between centre of nucleus and outermost sheel of cation ka formula use hoga ??????

[@MohammedHussain-qi6gk]

because of force of attraction will increase because less electrons

[@utkarshgupta1189]

Sir please upload new lecture fast as my exams are in corner. Thanks

[@nitindixit8477]

19:06 anionic radius is larger than parental radius

[@singhprince6922]

14:09 the size of cation is less from parental atom because in cation there are less electrons from parental atoms due to which the nucleus atracts the electrons more effectively and the size of the cation decreases

[@anishraj4720]

Hand written notes is much better 👌👌 sir ..... Carry on 👍👍😁

[@PRIYA_DEVI_761]

Sir app bahut acha paratha ho

[@thetruegamer6779]

8:00 true sir covalent radius will be less than atomic or actual radius becuase overlapped region isnt considerd

[@Amitkumar60255]

You are the best teacher in whole youtube chaanel

[@AnkitDwivedi-eb5wj]

9:07 to 9:55 so funny time 😂😂😂😂😂😂😅😅😂😅😂😅😅😂

[@GW.SHIVA999]

13:58 because Al+ me ek electron Loos hai jisse ki positive change Jada ho gya to nucleus or outer most shell ke bich attraction badh jaega isliye Al+(cation) ka size chota ho jaega...🙌

[@AdarshSingh-u6k]

8:20 yes sir because actual distance is from both

[@werewolf2006]

14:04 Al+ < Al because Al+ has more z-eff than Al

[@maryamNazifa-bt4cw]

obsly. size of anion > Parental atom bcz the effective nuclear charge becomes weak due to addition of elecetron-s

[@Nakuul_mehta_official]

33:00 due to vander waal becuase distance between tow atoms is large

[@rachnaagrawal35]

8:00 True,covalent radius is less than accurate radius

[@GW.SHIVA999]

Sir aap ke padhane ka tarika bahut unique hai because aap jo bich bich me maje lete ho na sach me.. Aapki class me kabhi bour feel nhi hota

[@pranavgardentips8083]

14:05 Because there is only 2 electron in outermost shell and parental atom has three electron in their outermost shell

[@PRIYA_DEVI_761]

Sir ji you are the next level teacher

[@MadhuGarg-kh3rg]

14:00 because loss of one electron attraction became less so size increase

[@vikashkushwah4577]

I have no words for you 🥰🥰 You are Brilliant ❤️❤️

[@gsgsagar1217]

14:23 Due to one more electron in outermost shell in Al

[@ZaidK_Official]

14:02 Effect Nuclear Charge it have positive charge

[@rishabhparcha]

13:45 But sir phele aapne kaha tha ki more the no. of valence e- more the attraction of e- towards nucleus jiski wajah se size chota ho jayega toh 'Na+' ka size bada hona chahiye 'Na' se kyuki 'Na' ke pss jyada valence e- hai

[@pranavpandey420]

Ooo sir kyaa baat boli he apne

[@BRIJESHYADAV-dx6rv]

Sir your taching menthod very good and simple thank you sir

[@itz_ram..]

because nucleus attract election by more force if attraction 14:12

[@letssing1]

13:59 IN AL+, no of electron=12 and no of protons=13 thus it is easier for 13 proton to hold 12 electron due to which size decreases IN AL, no of electron=13 and no of protons= 13 thus the radius remain same therefore, parental atom radius is always greater than cation atom radius

[@aartirmundkar9898]

Thank you so much sir muze atomic radius bahot confusion ho Raha tha aapne confusion dur Kr diya thanks

[@chanchalmala5989]

14:15 sir th e- will be less due to which the attraction 🧲 btw the nucleus and electron will increase

[@sanjaydhiman1385]

Why the size of the atom is not greater then aluminium when aluminium give one electron and become Al+ 14:08 . Because In last lecture we have read that size of the atom decrease when the number of electrons in the outermost shell increases .

[@nilakshitiwari573]

But bro in Al valence eletron is 3 and in Al+ valence electron is 2 (According to this valence electron is more so size will decrease) so Al valence electron is more than Al+ so Al size will less than Al+ but in this case( size of cation Al+ < parental body Al) I think size of atom decrease when valence electron increase it's only valid in neutral atom

[@SunilVerma-yq6xl]

Sir ji great😅😊😊

[@AnkitSelwal]

Sir jaise trends me left to right jaane par atomic size decrease ho rha tha kyunki shell same the or electrons badh jaate h or nucleus attraction jyada hoti h but sir ionic radius me jab shell same ho or electrons ek loose kar jaye to bhi size decrease hota h??

[@AdarshSingh-u6k]

33:25because they have vanderwall force of attraction

[@abhayrajvishwakarma5768]

✨Happy Teacher's Day sir ✨🎉

[@puspendrasingh881]

Sir please make videos on important questions of ch cover so far. We are having exam next week

[@Ankit-zi3yf]

08:15 YES COVALENT RAIDUS US LESS THAN ACTUAL RAIDUS

[@harshvardhan6804]

Hello sir ... I am currently in AAKASH + BYJUS but still on regular basis i used to see your lectures Sir u r op ...... Love u

[@vanshhxsaini]

Us

[@supermanvbatman7032]

7

[@ashokkumartripathi9098]

Yar akash byjus kaisa hai. Achha padhate hain?

[@DakshRana-y2y]

Itna Ameer h bhai tu dono expensive batch leke betha h

[@crazyscience....4670]

14:02 Increase in effective nuclear charge

[@nehamodi5990]

27:45 Sir electrons me repulsion nhi hota use time par... bahar wale and e- in outermost shell

[@hargunbedi5110]

Sir pls continue this chapter as soon as possible

[@HOPE.you_can_relate]

8:11 Yes, covalent radius is less than actual radius, because in covalent radius we do not consider the fact of overlapping of atoms, whereas an actual radius would contain the length of overlapped area too.

[@ankitpandey.]

36:10 sir ne last me demotivate kar diya ab mujhe apni existance pe bhi question hora hai😂

[@Shubham-k8i]

Sir your lecture helps a lot

[@HACKERFF-s7r]

14:08 because we compare the no. of electrone.

[@OmaimaShaikh-w6p]

Kon exam se 5 ghante phele padh rha hai .. koi aisa legend hai ... Kya .. warna surf Mai hi hu .. is duniya Mai 😂😢😅

[@AkshatChauhan-rb3wg]

Naa bhai mein bhi hun

[@khush_shergilll]

Me here before a night of exam

[@vishnupratapmandal326]

14 min wala question hai. Ans = kyoki sir parental aluminium par outermost shell me 3 electron hai aur Al (+) k outermost shell me 2 electron hai

[@Anshu.yadav2006-v5b]

Love you sir from up 🥰🥰🥰🥰

[@harshitabhaskar6122]

14:06 effective nuclear charge increase in less electrons

[@MelodyMix36]

😂😂😂😂 baat to sahi hai 😂 9:39

[@saifsafisaifsafi6199]

Sr pls upload other videos complete our course fastly pls sr👏👏👏👏👏👏👏👏👏❤️❤️❤️❤️

[@vishaltiwari4856]

Sir aap aise he hamesa padhate rahiyega aap bhut achha padhate h

[@navdeeprai4866]

9:00 But Sir maan lete hai ki 100meter me 1 or 2 meter ka difference aata hai to chalo thik hai but yahi difference 5 meter me aaye to tb to ye bahut jyada hoga n Atom bechara to pahale se hi bahut chhota hai tb to problem honi chahiye thi

[@AdityaKumar-ku5gp]

last ma sir na 🔥🔥

[@everygyan4608]

7:52 yes app sahi kah rahe ho👍👍👍👍

[@ishitaaa7884]

14:10 sir kyoki atomic configuration ka sum zayada h that's why Al+ < Al

[@LaxmiKumari-yp3yk]

19:05 size of anion apne parental atom se bada hoga

[@aadityashrivastava2254]

Sir aap bahut acha padhate ho..👍👍 par Aapne structure of atom me spectrum nhi padaya...or physics me bhi vectors me kuch topics nhi padhaye ....sir please even though aap lectures lengthly karo but har topic ko detailed me padhaiye...kyuki aap acha padhate ho

[@Lucifer_feanix]

8:00 I think this is true because due to overlapping the radius get reduced

[@MohammedSaadAnsari-c8b]

Size of anion bada hoga parental atom se

[@raunakonlinemathclasses2526]

From moving left to right in a period cationic radius decreases

[@arahansharma6700]

yes covalent radius is less than actual radius

[@Bts.121_4]

Sir me hand to hand aapke notes banati hu 😅agyakari 😝😜

[@tmrishu1526]

😂

[@DEEPFOCUS93]

Me bhi😅

[@arhgamingworld_99]

O hum sab kya yha bas tv dekhne nhi aate hm bhi banate hai 🫤😕

[@JanviSaini2008]

8:00 true ❤❤❤❤❤

[@Utpal-hp2bk]

14 sir Na+ m valance electron 2 hai esliy nucleus and outermost shell ka attraction com hoga ,but Na ka valance elctron 3 hai , so ism nucleus and outermost shell ka attraction jada hoga than Na+. So , Na ka size bara hoga than Na+.

[@hyperxgaming6299]

8:00 correct.

[@nakulsaxena7956]

14:12 the force of attraction is low