Class 9 Chemistry Chapter 3 | History of Atoms and Molecules - Atoms and Molecules

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Mam... a que...?? ....... is light a matter?? Remembering that light is a form of energy or electromagnetic radiation..... And light are made up of photons that are mass less.. so.. is light gave mass.....

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Light do not occupy space, have no mass or volume, and therefore are not considered matter. Because matter is defined as anything which occupy space and have some mass.

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@@priyadhama2634 Light does not occupy space but it is made of photons. So it has mass. Also it is matter.

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Smallest part of elements or compounds

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18:22 History of atoms and molecules topic starts....

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6:31 maam is sunlight a matter ?

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No

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@@gautamkrishna7924 u mean that sunlight has got mass ?

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@@Dhyeyeyee Yes. If you want I can explain it to you.

[@MagnetBrainsEducation]

Previous Video : Introduction - Class 9th chemistry kzbin.info/www/bejne/qWrHk3yabdGHr68 Next Video : Laws of Conservation of Mass (Part 1) - Class 9th chemistry kzbin.info/www/bejne/oGHCkJmum8l3oa8

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Right

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main Apne jo bhi definition batai matter everything around us everything that has mass and takes us space or volume is matter . Definition agar main exam main likhungi to kya mere 2 marks Pura aajainga kya ???????🤔🤔🙄😰

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How can I get notes

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@@mdnizammudin1247 electron, proton and neutron is itself making atoms by combining and group of atoms makes molecule then grp of molecule is making element and compound and these element and compounds are only called matter which is the final product..... I hope it's helpful!! Plz reply

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Mam i have a question that when you tern the glass straight in wate beaker the cotton does't fell, why?

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Because water provides buoyancy and cotton is light in weight therefore it cannot resist the buoyancy thus it floats

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1:44 session starts

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2:05 soory but light is energy not matter u can Google it

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She meant tube lights

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@@poonamkhurana6278 oh! Thank u

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Actually light is matter as it is made up of photons It has mass...

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@@poojajalan5987 yeah!! But here she meant tube light right..?

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[@harsh3720]

Ma'am Energy is all around us but it's not a matter. why. Explain please