Edexcel IGCSE Chemistry 复习笔记 1.4.2 Electronic Configurations Deducing Electronic Configurations We can represent the electronic structure of atoms using electron shell diagrams Electrons...
Edexcel IGCSE Chemistry 复习笔记 1.4.1 Periodic Table: Basics Arrangement of the Periodic Table There are over 100 chemical elements which have been isolated and identified Elements are arra...
Edexcel IGCSE Chemistry 复习笔记 1.3.2 Calculate Relative Atomic Mass Calculate Relative Atomic Mass The relative atomic mass of each element is calculated from the mass number and relative abundan...
Edexcel IGCSE Chemistry 复习笔记 1.3.1 Atoms: Definitions & Structure Atoms & Molecules It is important to understand the terms atom and molecule when referring to atomic structure, ...
根据英国教育部规定，GCSE课程分为“必修”和“选修”两部分，必修课程包括数学、英语和科学(物理、化学、生物)，“选修”课程的覆盖范围广、种类多样，可满足不同学生的需要。英国也有“中考分流”说？提高GCSE英语和数...
Edexcel IGCSE Chemistry 复习笔记 1.2.5 Practical: Investigating Paper Chromatography Practical: Investigate Paper Chromatography Using Inks & Food Colourings Objective: Investigate how paper ch...
Edexcel IGCSE Chemistry 复习笔记 1.2.4 Interpreting Chromatograms Identifying Mixtures Pure substances will produce only one spot on the chromatogram If two or more substances are the same, ...
今年夏天，英国的学生参加了自疫情以来的第一场线下GCSE 和 A-Level 考试。GCSE和A-Level考试是英国学子必经的“大考”，虽说这次是疫情后的首次线下考试，但是在考试难度、考试水平上考试局还是保持着一贯的水准。...
Edexcel IGCSE Chemistry 复习笔记 1.2 3 Separation Techniques Simple Distillation This is used to separate a liquid and soluble solid from a solution (e.g., water from a solution of salt wate...
