Edexcel IGCSE Chemistry 复习笔记 1.7.2 Covalent Bonds: Dot & Cross Diagrams Covalent Bonds: Dot & Cross Diagrams Covalent substances tend to have small molecular structures, such as ...
Edexcel IGCSE Chemistry 复习笔记 1.7.1 Formation of Covalent Bonds Formation of Covalent Bonds Non-metal atoms can share electrons with other non-metal atoms to obtain a full outer shell of ...
Edexcel IGCSE Chemistry 复习笔记 1.6 5 Ionic compounds: Bonds, Structure & Properties Ionic bonding The positive and negative charges are held together by the strong electrostatic forces...
Edexcel IGCSE Chemistry 复习笔记 1.6 4 Ionic Bonds: Dot & Cross Diagrams Ionic Bonds: Dot & Cross Diagrams Deducing Dot & Cross Diagrams for Ionic Compounds Sodium is a group 1 metal so...
Edexcel IGCSE Chemistry 复习笔记 1.6.3 Formulae for Ionic Compounds Formulae for Ionic Compounds The formulae of simple ionic compounds can be calculated if you know the charge on the ions B...
Edexcel IGCSE Chemistry 复习笔记 1.6.2 Common Ions Common Ions How to deduce the charge of an ion Find the number of electrons in the outer electron shell Find out if it is easy for the atom...
Edexcel IGCSE Chemistry 复习笔记 1.6.1 Formation of Ions Formation of Ions An ion is an electrically charged atom or group of atoms formed by the loss or gain of electrons This loss o...
Edexcel IGCSE Chemistry 复习笔记 1.5.10 Calculate Volumes of Gases Calculate Volumes of Gases Avogadro's Law Avogadro’s Law states that at the same conditions of temperature and pressure, eq...
Edexcel IGCSE Chemistry 复习笔记 1.5.9 Calculate Concentrations of Solutions Calculate Concentrations of Solutions Expressing Concentration A solid substance that dissol...
