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2.4.3 Valency and Writing formulae (Annabel Roberts) View | |
2.4.1 Atoms, Molecules and Ions (Annabel Roberts) View | |
element no 20 ,30 electronic configuration and bhors model (Math indiantech ) View | |
Gr10 July 2020 Winter Assessment Video 1 Q1 u00262 (Dr T and Mr G Science Masterclass) View | |
Electronic Configuration || Easiest Method || Tips u0026 Tricks For Electronic Configuration | Sir Shuja (the educational hub) View | |
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