Science | Prep.1 | Matter Construction | Part (3/3) | Unit One - Lesson Two

In This part we will study : Third : Molecules and atoms. - The molecule is composed of tiny structural units called "Atoms". - The difference in molecules of various substances is due to : 1. The number of atoms. 2. The kind of atoms. 3. The way of combination together. Kinds of molecules : Element molecule . Compound molecule Element It is the simplest pure form of matter which can't be analyzed chemically into simpler form by simple chemical methods. Compound molecule It is a substance which is formed from the combination of atoms of two or more different elements with constant weight ratios.' لينك تحميل الملزمة : Prep.1 - unit One - lesson Two - First Term 2020 http://bit.ly/2YbxwKG تم شرح هذا الدرس في (3) فيديوهات شاهدها بالترتيب Matter Construction (Part (1/3 https://youtu.be/m9XSK_mgyF0 (Part (2/3 https://youtu.be/Sg_rjj3-krs (Part (3/3 تشاهده الان https://youtu.be/IHHV2f-Az1c لمتابعة مستر احمد الباشا وكل ما يخص الساينس : جروب الفيس بوك http://bit.ly/2Of1mcN صفحة الفيس بوك http://bit.ly/2Gq5xMo بالتوفيق مستر احمد الباشا