Class 10 :Quick Revision Of Periodic Properties :Variation Down A Group & Along A Period (OLD VIDEO)

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  • เผยแพร่เมื่อ 15 ม.ค. 2025

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  • @PhysicsWallah
    @PhysicsWallah  6 ปีที่แล้ว +704

    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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    Periodic Classification Of Elements | 10 CBSE CHEMISTRY | Mandeleev's Periodic Table | Early Ideas|
    th-cam.com/video/94DXmFeY4rY/w-d-xo.html
    Modern Periodic Table Introduction | 10 CBSE / ICSE | How to find Group and Period of an Element |
    th-cam.com/video/O4g_GLACbbc/w-d-xo.html
    Trick To Learn Elements of Periodic Table GroupWise | 10 CBSE / ICSE | Group 1,2,13,14,15,16,17,18
    th-cam.com/video/tVP3b9ctMDs/w-d-xo.html
    Class 10 :Quick Revision Of Periodic Properties :Variation Down A Group & Along A Period (OLD VIDEO)
    th-cam.com/video/osfmR6aLLB8/w-d-xo.html

    • @gungunsingh8496
      @gungunsingh8496 6 ปีที่แล้ว +9

      Thankuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu sirrrrrrrrrrrrrrrrrr😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄😄

    • @alphaadventure8146
      @alphaadventure8146 6 ปีที่แล้ว +9

      Physics Wallah - Alakh Pandey 🎭🎭🎭🎭🎭🎭🎭🎭🎭

    • @dellumdollammusic5644
      @dellumdollammusic5644 6 ปีที่แล้ว +9

      Sir, number of electrons is also increasing with number of protons. Then, how??

    • @sohampanchal6501
      @sohampanchal6501 5 ปีที่แล้ว +31

      @@varindersingh4880 you don't have any manner to talk with teacher

    • @SumanSingh-fe6ln
      @SumanSingh-fe6ln 5 ปีที่แล้ว +14

      @@varindersingh4880 tumko pata hai yahi tuition lene ke liye log Aur teacher kitna charge karte hai....

  • @ashishsus7612
    @ashishsus7612 3 ปีที่แล้ว +934

    I think he is the only youtuber who dont give any introduction
    He is the best teacher he dont want student's time to be wasted.
    Else he always promoted us to use our precious time effeciently.
    Hats off to you sir
    Thanks for being here.

    • @matrixron7704
      @matrixron7704 3 ปีที่แล้ว +14

      Use doesn't instead of don't

    • @kalubabayt6366
      @kalubabayt6366 3 ปีที่แล้ว +7

      @@matrixron7704 are Bhai Kya hi admi ho Bhai .
      Attitude baby. 🤐

    • @shivamsaw4723
      @shivamsaw4723 3 ปีที่แล้ว +12

      Concept clarity bhi same

    • @aarnachopdekar9490
      @aarnachopdekar9490 3 ปีที่แล้ว +28

      @@shivamsaw4723 yes
      And then there’s verdantu, intro and promo of 15 mins and wasting half of time in reading comments
      Completely distracting from main topic
      I stopped watching their videos a long time ago

    • @papaua8012
      @papaua8012 3 ปีที่แล้ว +5

      @@shivamsaw4723 kisne hy guys welcome to the concept clarity
      Agr app humare channel ke sari video dehknah chateh he 199 ka subscription lene padega yeh kon keh tah

  • @sheelgupta4397
    @sheelgupta4397 ปีที่แล้ว +190

    It's been 5 years but still this video is the best video on TH-cam for chemistry

  • @j.premsiddartha1423
    @j.premsiddartha1423 3 ปีที่แล้ว +258

    I had never felt that chemistry would be this much easy and interesting until my friend recommended your channel.
    Thank you so much. You are helping me a lot in my 10 th board exams

    • @_difficulttodecide3614
      @_difficulttodecide3614 2 ปีที่แล้ว +10

      YOUR FRIEND IS THEN YOUR FRIEND

    • @ygc3084
      @ygc3084 2 ปีที่แล้ว +5

      @@_difficulttodecide3614 facts

    • @_sakshiii_crafts
      @_sakshiii_crafts ปีที่แล้ว +1

      @@_difficulttodecide3614 yes

    • @aryankumar7354
      @aryankumar7354 2 หลายเดือนก่อน

      Same thing my friend also suggest me then understand then understand Chemistry with full of concept

  • @Sukhmanxoxo
    @Sukhmanxoxo 10 หลายเดือนก่อน +16

    Tomorrow is my board exam and this is very helpful thnk uou you sirr 😄😄😄❤️

  • @ashishthehuman
    @ashishthehuman ปีที่แล้ว +20

    Video is very useful although it was uploaded 6 years ago.

  • @sakshimishra4614
    @sakshimishra4614 6 ปีที่แล้ว +1306

    Sir aap bahut aachha padate ho agar mera bass chalta tu mein aapko billion se bhi zayada like deti

  • @inshort2837
    @inshort2837 6 ปีที่แล้ว +581

    Sir i am your one of the first student i remember still now that when you have 26 subribers i joined you and still now i am confident about one thing that yes sir will teach me and i can do everything thank you sir for being with us and sir please upload videos of icse....waiting for you

    • @PhysicsWallah
      @PhysicsWallah  6 ปีที่แล้ว +325

      yes , i remember . there are some names i hae in my mind .. kindly mail me or msg me on fb which topic you want.

    • @priyanshugiri19
      @priyanshugiri19 6 ปีที่แล้ว +65

      I became a part of this family when it had only somewhat 150 subs and I think this the best decision I ever made.❤😘

    • @somvanshi_._yuvraj_._singh4916
      @somvanshi_._yuvraj_._singh4916 6 ปีที่แล้ว +15

      OK

    • @deadlygaming7140
      @deadlygaming7140 6 ปีที่แล้ว +14

      CBSE also

    • @vivektimeoutwala8508
      @vivektimeoutwala8508 5 ปีที่แล้ว +27

      Tabse fail kar raha h bhai?

  • @studentstudent3390
    @studentstudent3390 7 ปีที่แล้ว +310

    your way of explaining things are outstanding

  • @maya-rr6ve
    @maya-rr6ve 4 ปีที่แล้ว +109

    Due to alakh sir's teaching style a student dont have to memorize the concept he makes the concept of physics and chemistry so simple.. Thank you sir

  • @dhruvdhage8895
    @dhruvdhage8895 4 ปีที่แล้ว +38

    Sir never come in school, they will just ruin your talent, stay away from school and try to bring revolution in field of education. You have the capacity to do so. Best teacher ever........

    • @Sam_78.
      @Sam_78. 2 ปีที่แล้ว +4

      THE REVOLUTION IS NOW GOING ON IN THE FIELD OF EDUCATION!

    • @Zyaaaa.a
      @Zyaaaa.a ปีที่แล้ว

      😊

    • @Anshika-h9e
      @Anshika-h9e 11 หลายเดือนก่อน

      He has done the revolution..now many teachers are working under him and he boss now🥹

  • @sudeshkumari9765
    @sudeshkumari9765 5 ปีที่แล้ว +19

    19:25 expressions👍👍 Amazing sir....apke jasa acha koi ni phra skta....u r the best....!! ache se smj aa gya thnkuu so much😊😊

  • @n.007gaming9
    @n.007gaming9 5 ปีที่แล้ว +47

    19:24 😂😂😂. Learning with fun

  • @kbbro690
    @kbbro690 5 ปีที่แล้ว +524

    Sir I wish aap humare school mein hote...😕😕😕YOU ARE THE BEST TEACHER!!😌😌

  • @mishra_ji611
    @mishra_ji611 10 หลายเดือนก่อน +17

    Who are watching before cemistry eman 2023-2024 😅

  • @alonegaming-cl5zc
    @alonegaming-cl5zc 10 หลายเดือนก่อน +5

    The vedio is 6year ago but still shines 😎👌💖like sun.
    ❤❤❤❤❤❤❤❤❤❤For our bright future 💥💫💝

  • @AshutoshKumar-fr1ll
    @AshutoshKumar-fr1ll 6 ปีที่แล้ว +9

    Aapka yeh old video aur latest videos darsati h ki apne hmlog k liye kitni mehnat ki h
    Hatss off to u sir😧🤓

  • @artguru1709
    @artguru1709 ปีที่แล้ว +1016

    Anyone here in 2024-2025 ?😅

  • @archanamishra6128
    @archanamishra6128 3 ปีที่แล้ว +1

    Bole toh Kya ghata ghat ghata ghat complete kiya sir samajh bhi aaya notes bhi bna liye definition yaad ho gai pura chapter samajh aa Gaya 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

  • @bgmigamingplatform4937
    @bgmigamingplatform4937 ปีที่แล้ว +8

    ❤❤❤❤❤❤❤❤ 2022-2023 ka batch aap sir dubara padhana shuru kar di jiye please naye toh aur bhi upgraded level pe honge❤❤❤

  • @kushalmodi3280
    @kushalmodi3280 7 ปีที่แล้ว +234

    sir, i have been watching your videos for the past 4 months and have been very impressed by your superb explanation, i go for extra classes but that teacher is shit, sir really if i get above 90% this boards it will be all because of you. Thanks sir Hats off to you!

    • @jayantprasad8523
      @jayantprasad8523 6 ปีที่แล้ว +3

      HOW MUCH YOU GOT

    • @asthamahto210
      @asthamahto210 6 ปีที่แล้ว +1

      how much you got?

    • @rachelsteffens9182
      @rachelsteffens9182 6 ปีที่แล้ว +1

      How much you have got??

    • @japnumryan5311
      @japnumryan5311 6 ปีที่แล้ว +1

      Bro how much you got then so many people r asking plz. Tell us

    • @vineetsingh3374
      @vineetsingh3374 6 ปีที่แล้ว +4

      @James C get lost unsubscribe to t-series....gay

  • @itsslappy5572
    @itsslappy5572 2 ปีที่แล้ว +16

    1 IN A BILLION TEACHER
    NO ONE IN THE WORLD CAN EXPLAIN BETTER THAN HIM....BEST TEACHER IN THE
    I THERE WAS A TEACHER IN MY SCHOOL LIKE HIM I WOULD HAVE NEVER SKIPPED A SINGLE CLASS OR DAY

  • @Youtubfun4lyf
    @Youtubfun4lyf 3 ปีที่แล้ว +42

    U deserve sm prestigious award for ur way of teaching... I never saw anybody teach in dis flawless style

  • @ShubhamKumar-tq7jl
    @ShubhamKumar-tq7jl หลายเดือนก่อน +2

    15:49 neutron and proton 😅 sir apki bat hi alag hai 😊

  • @Abhishekguptacr7
    @Abhishekguptacr7 29 วันที่ผ่านมา +1

    Ake baar me he pura concept clear kara dia alakh sir ne.
    Watching this video in 2024 for 2025 boards,video is 7 years ago and is still helping us and will help in future also.
    Thank you very very much sir❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤.

  • @Mr.DCreates
    @Mr.DCreates ปีที่แล้ว +5

    kya mtlb PW ke channel pe same topics ke naye videos bn rkhe h, mai toh Alakh sir se he pdhunga, chahe unki video 6 sal purani he kyu na ho.... hats off to you sir❤❤

  • @dakshtyagi5544
    @dakshtyagi5544 4 ปีที่แล้ว +52

    Preparing for Icse board exam 2021, I came in 10 recently and watching this in lockdown due to the corona virus.

  • @bhagyashreeduratkar4397
    @bhagyashreeduratkar4397 7 หลายเดือนก่อน +1

    very nice vidoe!!! all my concept has got cleared. 👍👍

  • @VipanMEHTA769
    @VipanMEHTA769 ปีที่แล้ว +2

    You are the best teacher in the world aap bahut sahi padate ho book dakne ki jarurat nhi padte thanku sir ❤❤
    Live long
    God bless these person always

  • @samu89efiction
    @samu89efiction ปีที่แล้ว +3

    19:24 Silicon is a metalloid Sir ☺

  • @AmitKumar-gy5hi
    @AmitKumar-gy5hi 8 หลายเดือนก่อน +26

    2024-2025 batch anyone here 😂😂???

  • @harshff4674
    @harshff4674 6 ปีที่แล้ว +26

    Sir....your smile is very cute......and you are overloaded with talents

  • @chitrasuthan7613
    @chitrasuthan7613 9 หลายเดือนก่อน +2

    10:10 down a group (Top to bottom)
    19:20 left to right

  • @countlitmogaphil392
    @countlitmogaphil392 3 ปีที่แล้ว +2

    bhai sahab.. 20 minutes mein 1 hr ke layak revision karwa diya.. dhanya ho sir aap😂😂

  • @mayankprabhu8736
    @mayankprabhu8736 3 ปีที่แล้ว +17

    Just Give this man the worlds best teacher award... What a legend.. Sir absolutely love you and your teaching

  • @bivekrai3739
    @bivekrai3739 2 ปีที่แล้ว +6

    Sir you are very skilled the things I could not understand in class or flipping pages of book you made me understand in one brief video

  • @parthhdeshmukh
    @parthhdeshmukh 4 ปีที่แล้ว +6

    Sir aapne to seedha concept clear kar dala
    you are the best teacher in the world
    RESPECT X 1000
    :)))

  • @roygaming9146
    @roygaming9146 4 ปีที่แล้ว +1

    Sir 🤐🤐🤐alag level kai teacher 💯💯💯💯💯💯💯💯💯💯💯💯
    😀😀😀😀😀😀😀😀😀😀😀😀

  • @siddharthphogat1856
    @siddharthphogat1856 4 ปีที่แล้ว +2

    Thank you,sir

  • @navneetpatel_XIX
    @navneetpatel_XIX 4 ปีที่แล้ว +5

    I am grateful that I found your videos🙏

  • @aryansambher3526
    @aryansambher3526 10 หลายเดือนก่อน +23

    Who is here for 2024 board exam❤

    • @jkaen
      @jkaen 10 หลายเดือนก่อน +1

      ​@promitdhar3506same here bro 💀 just completed 1st chapter

  • @sarthaktaliyan6244
    @sarthaktaliyan6244 4 ปีที่แล้ว +5

    19:22 what a reaction sirrr!!🤣🤣🤣

  • @animeshkumar4819
    @animeshkumar4819 2 ปีที่แล้ว +1

    Thank you sir because My All concept was clear

  • @_shamayitamukherjee_11c10
    @_shamayitamukherjee_11c10 4 ปีที่แล้ว +1

    tqq so much sir............it helped me a lott!!!

  • @SenseEditz
    @SenseEditz ปีที่แล้ว +10

    All the best for tomorrow 👍

  • @mdinventions1763
    @mdinventions1763 ปีที่แล้ว +4

    U deserve this success sir ❤️❤️❤️ othere meaning of hard work 💞💞💞

  • @piyushmishra6535
    @piyushmishra6535 4 ปีที่แล้ว +644

    Who is here after 3 years
    😂😲🤣

  • @vanshkhurana755
    @vanshkhurana755 4 ปีที่แล้ว +1

    terse best sir koi bhi nahi h alakh bhai you are just amazing

  • @vishwasmohan2642
    @vishwasmohan2642 3 ปีที่แล้ว +4

    Sir bahut maza aaya padhne aapne boards ki preparation easy kardi . Thank u so much sir 😊

  • @nareshmarria2642
    @nareshmarria2642 6 ปีที่แล้ว +10

    amazing you r theeee bestttt

  • @HorrorGhost_Gaming
    @HorrorGhost_Gaming 2 ปีที่แล้ว +3

    Loved it 😭❤️ Relieved now

  • @alphagamma5791
    @alphagamma5791 4 ปีที่แล้ว +1

    Sir ur god of physics...🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

  • @dontreply395
    @dontreply395 3 ปีที่แล้ว +2

    Your expressions are just🔥🔥💥💥😎😎✌️✌️

  • @Ali_666h
    @Ali_666h ปีที่แล้ว +7

    This video is helping me even in 2023 thanks alot! 😊 sir🖤🤍

  • @sparbizzere6932
    @sparbizzere6932 4 ปีที่แล้ว +2

    Cute Alakh Sir - 15:51

  • @debasisdutta8563
    @debasisdutta8563 2 ปีที่แล้ว +36

    Sir hats off to ur energy....tysm for making chemistry easy..u are a wonderful teacher

  • @lavanyaverma7721
    @lavanyaverma7721 4 ปีที่แล้ว +17

    Thank god ki ye video exams ke pehle mil gyi😌😌

    • @Irfan_binakbar
      @Irfan_binakbar 3 ปีที่แล้ว +1

      🥰🥰🥰🥰🥰🥰🥰🥰

  • @shalusood1612
    @shalusood1612 4 ปีที่แล้ว +1

    Thank you so much sir 😊😊

  • @0tobillion09
    @0tobillion09 2 ปีที่แล้ว +6

    who are watching it now for term 2 science exam 10 may >>>>ALAKH SIR IS THE BEST :)

  • @AjayTiwari-ne2nc
    @AjayTiwari-ne2nc 7 ปีที่แล้ว +10

    thank you so much sir ...it helped me a lot..

  • @mitoo5686
    @mitoo5686 3 ปีที่แล้ว +14

    0:10 Down a group
    10:40 along a period

  • @amansinghrajput62
    @amansinghrajput62 3 ปีที่แล้ว +2

    Sir old is gold is being proved in this video

  • @arvindverns.7042
    @arvindverns.7042 7 ปีที่แล้ว +9

    sir thank........................ you soooooo much...........

  • @Kusum317
    @Kusum317 5 ปีที่แล้ว +31

    19:23 me 🙋when asked some questions💭❓.. 😂😂🤣🤣

  • @piyushsherkar
    @piyushsherkar ปีที่แล้ว +3

    King of students for a reason..👑

  • @alonegaming-cl5zc
    @alonegaming-cl5zc 10 หลายเดือนก่อน +2

    The veidio is 6year ago but still shines 😎👌👌👌💖💖💖💖💖💖💖💖ike sun. ❤❤❤❤❤❤❤❤❤❤❤For our bright future 💥💥💫💫💗💝

  • @shauaryashah8695
    @shauaryashah8695 4 ปีที่แล้ว +1

    Very nicely explained !!! # sir

  • @adil.m
    @adil.m 3 ปีที่แล้ว +3

    Is insaan ko best teacher ka award do

  • @reliefzone01
    @reliefzone01 3 ปีที่แล้ว +3

    Thank u for such an understandable Explanation✌️

  • @sujeetkumarroy3062
    @sujeetkumarroy3062 5 ปีที่แล้ว +13

    Thanks sir .
    one of the best teacher.
    God maks your future bright .

  • @ajaypal7309
    @ajaypal7309 3 ปีที่แล้ว +1

    Sir... You are bestest 😊😊😊🙏

  • @fatimaahmad192
    @fatimaahmad192 3 ปีที่แล้ว +1

    Sir it's very helpful
    Thanks

  • @waqifwarsi
    @waqifwarsi ปีที่แล้ว +24

    I am preparing for class X 2023 still this video is very helpful for me... Thank you sir 🙏🏻

  • @nehatiwari2031
    @nehatiwari2031 7 ปีที่แล้ว +15

    Amazing explanation sir ..

  • @SanjanaSingh-cz1im
    @SanjanaSingh-cz1im 7 ปีที่แล้ว +11

    Thank you so much sir for explaining these chapters in an incredible manner.....your explanation makes the chapter really easy....If I would be able to secure 90+ ....then it would be just because of you........A mere thanks for you is nothing as such because my blessings for you are so so much....keep making these videos........😊😊😊
    Sanjana,your student.

  • @Luckysd870
    @Luckysd870 3 ปีที่แล้ว +2

    Sir you are the best teacher👩‍🏫‍👩‍🏫‍

  • @abhijeetamishra9283
    @abhijeetamishra9283 4 ปีที่แล้ว

    sir ...aap best ho...aapke jaisa koi nhi.....!

  • @shriyabhan9688
    @shriyabhan9688 4 ปีที่แล้ว +6

    Sir at
    19:24 Si (Silicon ) is a metaloid...

  • @sakshipandey2686
    @sakshipandey2686 3 ปีที่แล้ว +19

    So glad that you are on youtube❤️
    I wish ki sabke boards me achhe percentage aae😀😀

  • @chinnarinakshytramala
    @chinnarinakshytramala 4 ปีที่แล้ว +33

    Don't call it a old video because for new children it is a new video for them to learn😅
    Hit like if u agree

    • @AD-rn8pj
      @AD-rn8pj 2 ปีที่แล้ว +1

      well said buddy

  • @mokeemaman7516
    @mokeemaman7516 4 ปีที่แล้ว +1

    Style of teaching is so fantastic

  • @itz_shashank_7475
    @itz_shashank_7475 2 ปีที่แล้ว +1

    Thank you🌹 sir

  • @ummerasheikhsheikh8070
    @ummerasheikhsheikh8070 6 ปีที่แล้ว +4

    Thank you So Much ❤dil se

  • @Spartan20FPS
    @Spartan20FPS 3 ปีที่แล้ว +5

    Sir aap boht acche se Explain krte ho, Allah apko sehat de ameen ❤

  • @santoshtiwari-vi1po
    @santoshtiwari-vi1po 7 ปีที่แล้ว +4

    Sir, your way of teaching is awesome.

  • @ramgatigupta6525
    @ramgatigupta6525 4 ปีที่แล้ว +1

    Sir aap bahut best hai

  • @jayrika0527
    @jayrika0527 4 ปีที่แล้ว +2

    This video is really helpful . Thank u so much sir☺☺

  • @divyanshdcgreat
    @divyanshdcgreat ปีที่แล้ว +17

    Who is having their chemistry class 10 board Tommorow?

  • @GurpreetSingh-ej6vu
    @GurpreetSingh-ej6vu 3 ปีที่แล้ว +3

    4:50 - ELECTRONS BE LIKE VILLAGERS OF MINECRAFT 😂😂😂

  • @Amitrana099
    @Amitrana099 3 ปีที่แล้ว +3

    Sir board ke preparation karne ke liye kam se kam aap Ho jaate chahe to bahut achcha lagta or bahut achha marks laate 😔😔😔😔😔

  • @gayatrisinghh1732
    @gayatrisinghh1732 3 ปีที่แล้ว +2

    Sir, You made it easy.

  • @tulsikuniyal9638
    @tulsikuniyal9638 4 ปีที่แล้ว

    Bestest teacher ever ......... Completely understood

  • @prochetasur5452
    @prochetasur5452 4 ปีที่แล้ว +15

    How I wish I could take tuitions from you.

  • @WarriorAnand2
    @WarriorAnand2 5 ปีที่แล้ว +56

    🖊️🖊️Kon world Best teacher ALAKH SIR ki video dislike karta hai😠😡😠😡🥺 usko to 😡😡😠😠 No any dislike for ALAKH SIR ✔️ video...👍👍👍👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

    • @coolscore11
      @coolscore11 4 ปีที่แล้ว +8

      Dusri coaching institute Ke teachers 😆😆😆😆😜

    • @adarshapathshala1505
      @adarshapathshala1505 4 ปีที่แล้ว +2

      @@coolscore11 u r absolutely right.. bcz student toh karenge nhi 😜

    • @coolscore11
      @coolscore11 4 ปีที่แล้ว +1

      @@adarshapathshala1505 😆😆

    • @jaihind9631
      @jaihind9631 4 ปีที่แล้ว

      Iam disliking the video

    • @WarriorAnand2
      @WarriorAnand2 4 ปีที่แล้ว +1

      @@jaihind9631 pahle English thik se likhne sikh tb dislike or cmnt kr 🧐😂😂.....

  • @kamalgurjar6970
    @kamalgurjar6970 5 ปีที่แล้ว +19

    I was confused about this topic thanks for the help

  • @Thenayak89
    @Thenayak89 2 ปีที่แล้ว +1

    Sir you are great 👍👍👍

  • @sheelgupta4397
    @sheelgupta4397 ปีที่แล้ว +2

    Sir thnku thnku very much

  • @ajayharitashya6110
    @ajayharitashya6110 6 ปีที่แล้ว +8

    Chemical reactivity
    Variation in group and period

  • @ranadeepbanerjee5309
    @ranadeepbanerjee5309 4 ปีที่แล้ว +13

    Everytime I watch the video.. I feel like giving one lakh likes for your efforts ❤️🙏

  • @lakshay...2794
    @lakshay...2794 2 ปีที่แล้ว +3

    I am in class 11 but all conceptd just revise in 20 minutes , that's amazing