Bihar Polytechnic / jharkhand Polytechnic / First Semester / Atomic Structure / chemistry 

Good 🎉

Superb Sir 👌

❤

Thank you so much❤😊 sir jee🙏😍❤ . |

Thanks sir

Thank you sir for this video

Nice sir 👍🙏🏾

Very clear concepts atomic structure 👍

Sorry to say but electron is discovered on 1898

Class sandar rha sir ji 👌👌👌👌👌

Super hit sir🙏🙏🙏

Maja aa gya sir G पढ़ kar

Super class Sir 👌👌👌

Aap good morning sir ek like

Aap sir great ho

Good Evening Sir ji

👍

Aap to gjb padhate hai sir

गुड इवनिंग गुरु जी

👍👍👍📖📖✍️✍️🇮🇳🇮🇳

Sir

Sir aaj to hum ईंट पर नाचेगें

Sir maja nhi aa rha ha

Bihar Association ka link bhejiye telegram group me jald se jald

Sir ek alag channel bana dijiye jisme sirf classes hoo Isme video dhundhne me thori takleef ho rhi hai.

Sir atomic mass 23 kese ayaaaa

Test exam kaisa pradan rahta

Sir proton ka khoj to Goldstein ne kiya tha

😂😂😂

Sir kis book se padhaye hai

Hlo frnds