एक से 18 तक के तत्वों का परमाणु संरचना//

[@sandeeplakhara153]

Sir 30 tak btao

[@RajKumar-ti5ud]

Thanks you sir

[@meerakori4025]

😊👏👏👏

[@IndrajKumar-dp3xp]

Thank you sir

[@kingkingdom465]

Thanks for you

[@kingkingdom465]

Thanks for you

[@kingkingdom465]

Thank you

[@Aartithakur3407]

😮😮😮😮

[@SumitSingh-c3v]

Sar

[@crazyfunkeyboys3954]

Bahut bahut dhanyawad sir ji

[@kartikthakurfunnyvideo6691]

Thañks understand for me

[@ramgulalukeuke1000]

Thanks for you sir 😊

[@komalsharma784]

Tank you sor

[@MariyamBano-q4b]

Sir 7N mai circle itne hi hai kya

[@lalitadarro7558]

Thank you so much Sir ji

[@diviyank]

Sir woh electron hota hai elocten nahi 😂😂😅

[@R_o_s_e_26]

Sir asa q

[@RasayanVigyan9Ten]

Hamara dimag Chitra ke madhyam se chijon ko samajhta hai isiliye Chitra ke madhyam se tatvon ke parmanuon ko samjhaya ja raha hai

[@ChandShadab-g5z]

Sir mahi dikhraha