Edexcel IGCSE Chemistry 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 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 復(fù)習筆記 1.5.9 Calculate Concentrations of Solutions Calculate Concentrations of Solutions Expressing Concentration A solid substance that dissol...
