53:11

Variable Electrovalency | Solvation Energy | Chemical Bonding (P-2) | in Bengali by Joydeb Pal

53:04

Ionisation Enthalpy | Periodic Classification of Elements Class 11 (P-8) | in Bengali by Joydeb Pal

30:05

Short Electron Configuration | Nomenclature of Elements With Atomic Number Above 100 | by Joydeb Pal

53:57

Ionic Bond | Chemical Bonding Class 11 (P-1) | in Bengali by Joydeb Pal

1:08:16

VB Theory | Hybridization Chemistry | Chemical Bonding Class 11 (P-9) | in Bengali by Joydeb Pal

54:51

Ionic Radius Trends | Periodic Classification of Elements Class 11 (P-7) | in Bengali by Joydeb Pal

52:32

Covalent Bond | Chemical Bonding Class 11 (P-3) | in Bengali by Joydeb Pal

1:12:57

Screening Effect|Effective Nuclear Charge|Slater Rule|Periodic Properties| In Bengali |Chem Guidance