澳大利亚八大名校A-Level申请要求汇总
作为英联邦国家，用A-Level成绩申请澳洲大学很有优势。澳洲八大名校对于A-Level的成绩要求比高考成绩要宽松很多，升读名校更容易。 澳大利亚八校联盟（Group of Eight，简称Go8或G8），又称澳大利亚八大名校、澳...
CIE A Level Chemistry复习笔记1.2.6 Water of Crystallisation
Water of Crystallisation Water of crystallisation is when some compounds can form crystals which have water as part of their structure A compound that contains water of crystallisation is called a ...
CIE A Level Chemistry复习笔记1.2.5 Empirical & Molecular Formulae
Empirical & Molecular Formulae The molecular formula is the formula that shows the number and type of each atom in a molecule Eg. the molecular formula of ethanoic acid is C2H4O2 The empirical ...
CIE A Level Chemistry复习笔记1.2.4 Balancing Equations
Balancing Equations A symbol equation is a shorthand way of describing a chemical reaction using chemical symbols to show the number and type of each atom in the reactants and products A word equat...
CIE A Level Chemistry复习笔记1.2.3 Formulae
Formulae of Ionic Compounds Ionic compounds are formed from a metal and a nonmetal bonded together Ionic compounds are electrically neutral; the positive charges equal the negative charges Charges ...
CIE A Level Chemistry复习笔记1.2.2 The Mole & Avogadro Constant
Mole & Avogadro Constant The Avogadro constant (NA or L) is the number of particles equivalent to the relative atomic mass or molecular mass of a substance The Avogadro constant applies to atom...
CIE A Level Chemistry复习笔记1.2.1 Relative Masses
Relative Masses Atomic Mass Unit The mass of a single atom is so small that it is impossible to weigh it directly Atomic masses are therefore defined in terms of a standard atom which is called the...
CIE A Level Chemistry复习笔记1.1.12 Ionisation Energies & Electronic Configurations
Ionisation Energies: Explained Energy is required to remove an outer shell electron as this involves breaking the attractive forces between the electron and the positively charged nucleus There are...
CIE A Level Chemistry复习笔记1.1.11 Ionisation Energy Trends
Ionisation Energies: Trends Ionisation energies show periodicity - a trend across a period of the Periodic Table As could be expected from their electronic configuration, the group I metals have a ...
CIE A Level Chemistry复习笔记1.1.10 Ionisation Energy
Ionisation Energies The Ionisation Energy (IE) of an element is the amount of energy required to remove one mole of electrons from one mole of gaseous atoms of an element to form one mole of gaseou...
CIE A Level Chemistry复习笔记1.1.9 Determining Electronic Configurations
Determining Electronic Configurations Writing out the electronic configuration tells us how the electrons in an atom or ion are arranged in their shells, subshells and orbitals This can be done usi...
CIE A Level Chemistry复习笔记1.1.8 Electron Configuration
Electron Configurations: Basics The electron configuration gives information about the number of electrons in each shell, subshell and orbital of an atom The subshells are filled in order of increa...
