Class 9 Chemistry Chapter 3 | What is an Atom? - Atoms and Molecules

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Previous Video : Limitations/Drawbacks of Dalton’s atomic Theory - Class 9th chemistry kzbin.info/www/bejne/qImkeJ6La9x_qZY Next Video : Symbols Used to Represent Atoms of Different Elements - Class 9th chemistry kzbin.info/www/bejne/jYTIeXh5pMihfJo

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Right. Vaibhav

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chemical reaction kya hai😑

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[@vipinkumarmishra7298]

Mam jab dalton ki atomic theory wrong thi to use hamaare chapter me laane ki jaruurut kya thi mam please tell me

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To clear the concept dude

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[@creativity111...]

Mam as you explained drawback of dalton's atomic theory... The first limitations was .. Atom is no longer smallest particle... Yet in definition we have to write our answer that "Atom is the smallest unit which cannot be divided further" May you please explain why we write wrong postulates in our answer and teachers also give marks for this wrong definition?????

[@kentellect772]

What we say is that an atom is the smallest particle of a given element. An atom of iron is the smallest possible bit of iron. Yes, the iron atom has parts, but those parts aren't iron by themselves.

[@neetaspirantaiimsdelhi5935]

@@kentellect772 Yes Because those parts are of Atom and we cannot say that those parts are of Iron.

[@Sm-ws8ji]

An atom is the smallest particle which cannot be further divided and retains the characteristic properties of that element

[@deekshabeniwal4325]

In actual atom are not smallest particles but they are the smallest particles of an element this is the correct defination.

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U r right ✨

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Best teacher of science I like the way you teach 🥰🥰🥰😍😍😍👌👌👌

[@adarshbhatnagar]

You explained everthing very well . but i have a doubt , in calculating the radius of the atom why are we considering the nucleus and the outermost shell .I think it must be the cener of the shell and the circumference of the atom and not the outermost shell could you plz explain this

[@farhaadkhaann]

Nehi😁

[@vikrant9917]

So i have learnt in biology that the nucleus is part of cell . And now I learnt it's part of atom. Can anyone explain

[@pratikshamahajan5635]

Ourter most shell of the atom acts like the circumference of an atom

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Session Start from 1:16 😄

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[@jahnavichillekar1416]

At olden days we not have STM ( scanning Tunneling microscope ) How they discovered atom mam .

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Hi

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Hi

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In olden time philosopher gave only predictable philosophy They were unknown about 100 accurency . But in these day we have stm and we can prove the philosophy gave by philosopher. Ok🙏

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No bro

[@naveentoppo1316]

Very good explanation I have a doubt but I seen this video so I understand very much about atom thank you for this video

[@Brownlad0304]

Should we have to prepare limitations of daltons atomic theory ? As it is not given in ncert...

[@MagnetBrainsEducation]

Yes, it is always a good idea to prepare for the limitations of any theory that you study. Dalton's Atomic Theory is no different. You can find a list of the limitations of his theory here: www.pabbly.com/out/all-videos-playlist

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5:39 same 🐜 i thought

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1:17 start

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I new am to this channel but still I am really understanding well, I just have a request that lessons should have less time limit because our parents give us limited time for phone.

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Sorry but I don't think so Coz they are explaining the chapters in detailed...so in less time or limited time they are maybe not able to do tht.. You should ask your parents for giving you more time to study on phone

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[@aliizhan8286]

Mam I have a doubt that what is the difference b/w atom and molecule other than atom being the smallest particle of an atom and molecule being the smallest unit of compound 🤔

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yes mam mee tooo

[@rahulashish918]

Atom is the smallest particle and many atoms combine to form molecules

[@AzamKhan-mw3lb]

Atom is the smallest unit of Matter... Where as molecule is the combination of Atom..

[@niveshbhardwaj1892]

Atom is the Smallest . Molecule is of 2 or more atomd

[@harilalyadav5033]

You are great ma,m

[@anilgade906]

But how can we say that atoms are defined as the smallest particle of an element. .neutron , protons and electrons are the smalllest ones.. 4:31

[@smitaax]

It means that atom is the smallest particle of an element coz neutron, proton and electron can't make an element but they only combine together to form an atom and further atoms combine to form an element.

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Mam who discovered this stm ..........name of scientist................is i t from india...........mam microscope ma kush dakhta samaya ham photo kasa click kar sakta ha......mam silicon elements ka photo kasa click kiya hoga ...

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Name of Scientist :- Gerd Bining and Heinrich. There are German scientists.

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Mam my book is based on CBSE board and your lectures are based on NCERT board so this is a problem that some differences between CBSE and NCERT so plz try to solve this And you are a great teacher

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There is no difference bro. CBSE gave u nceart book. The others book is by school for your knowledge

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Mam existance of an atom ⚛️ ki mean kia hai please tell me......

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Mam, is the distance between the energy shells of an atom the same?

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Yes

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Nope, you'll learn this is higher classes but distance increases and it's proportional to the square of the shell number

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Very nice explanation thank you mam 🙂👌🏻

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[@mannatsuri8475]

From the nucleus to the outer most shell of an atom is called is radius or nucleus to the circumference of an atom is called it's radius Mam please solve my doubt

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Mam Is atom smallest particle of matter on the bases of isotopes

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Mam agar atom itna chota hai to electron kitna chota hoga

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😂

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Please make another new playlist for vibhuti mam's chemistry teaching

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It's there....

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Yes

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@@binayakchoudhury5492 In her every videos' description , u can see there ... *Get all subjects playlists*

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Mam atom is not the smallest particle because inside the atom electron are present and the size of electron are smaller than atom tis my new concept ok

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it should have a definition right that's why we say atom is much smaller than an atom if you have knowledge of atoms then please answer this define the sub atomic particles of an atom ⚛

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Mam u r the best science teacher I had ever seen......

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[@shadmansoumik9535]

If an atom is neutral, why does it want to be bonded with other atom(s) to make compound?

[@MrUpen2008]

It wants to make bond to.complete it octet in last shell of atom. Atom with 8 electron in last shell is stable so they do chemical reaction to gain or lose electron to gain stability

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Mam you are awesome 😎😎

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Thanks❤🌹 mam u for best 👍explanation

[@mehndiaashiyana814]

Mam plz tell me...which atom definition we will use....in exams.... Before daltons atomic theory or after daltons atomic theory...plz answer mam ...😭😭

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14:54

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Please mam reply my question that every things have atom. Paper has also atims Living and non Living things have atoms

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Hi there - thank you for watching our educational videos and for leaving us a comment! Yes, you are correct! All living and non-living things are made up of atoms. We hope you found the videos helpful. Please keep watching!

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Thank you mam

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4:38 😂😂😂😂😂😂

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Mam batao na jab atomic theory Dalton ki galat thi to usee chapter m lane ki kya jarurat thi

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I understood your explanations....

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Mam in my book has written that atom is not a smallest particles there are sub atomic particles are there But, u are telling that it is smallest particle of element

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In actual it means that we have to do 1000000000 parts of 1 metre .

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You are taking so much time

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24:25 pe speed 0.25 pe dekho😂😂😂😁😁😁😁😁😁😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂👍👍👍👍👍👍👍👍👍👍👍👍👍👍😆😆😆😆😆😆😆😆😆😆😂😂😂😂

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Mam if we are converting 1m into 1/10 pour 9 what will be the answer

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Kreyy nhi... Khare

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supr teaching

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Thanks mam for explaining this chapter

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maam ye to pakka h ki ab atom ki radius kabhi nhi bhulenge... thanks maam for the session its awesom

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