Chemistry | Sec 2 | chapter 1 | Lesson 4: principles of distributing electrons
1:14:39
chem sec 2 -El-MOASSER - chap 1- lesson 4: principles of distributing electrons
1:55:21
Chemistry | Sec 2 | chapter 2 | Lesson 2: graduation of representative elements properties
1:06:34
Chemistry | Sec 2 | chapter 1 | Lesson 3: Quantum numbers
1:03:03
integrated science| Sec 1 | chapter 3 | Lesson 3 and 4
1:05:05
Chemistry | senior 2 first term 2023 | lesson 4 | Distribution principles | دكتور/محمود المشتولى
1:15:11
Chemistry | Sec 2 | chapter 1 | Lesson 2: Atomic emission spectra
1:02:48
Chemistry | Sec 2 | chapter 2 | Lesson 4: continue graduation of representative elements properties
2:18:54