Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 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...
Representing Electric Fields The direction of electric fields is represented by electric field lines Electric field lines are directed from positive to negative Therefore, the field lines mu...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 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...
Coulomb's Law All charged particles produce an electric field around it This field exerts a force on any other charged particle within range The electrostatic force between two charge...
Trigonometric Equations: sinx = k How are trigonometric equations solved? Trigonometric equations can have an infinite number of solutions For an equation in sin or cos you can add 360° or 2π to ea...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.3.1 Atoms: Definitions & Structure Atoms & Molecules It is important to understand the terms atom and molecule when referring to atomic structure, ...
根據(jù)英國(guó)教育部規(guī)定，GCSE課程分為“必修”和“選修”兩部分，必修課程包括數(shù)學(xué)、英語(yǔ)和科學(xué)(物理、化學(xué)、生物)，“選修”課程的覆蓋范圍廣、種類(lèi)多樣，可滿足不同學(xué)生的需要。英國(guó)也有“中考分流”說(shuō)？提高GCSE英語(yǔ)和數(shù)...
Relationship Between Trigonometric Ratios What relationships between trigonometric ratios should I know? If you know a value for one trig ratio you can often use this to work out the value for the ...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.2.5 Practical: Investigating Paper Chromatography Practical: Investigate Paper Chromatography Using Inks & Food Colourings Objective: Investigate how paper ch...
