Factors Affecting Ionisation Energy Ionisation energy 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...
Interpreting Mass Spectra Isotopes are different atoms of the same element that contain the same number of protons and electrons but a different number of neutrons These are atoms of the sam...
Isotopic & Atomic Mass The relative mass of an atom uses the carbon-12 isotope as the international standard One atom of carbon-12 has an accepted mass of 1.992646538 x 10-26?kg It is not reali...
Atomic Structure Calculations An atom is?neutral?and has no overall charge Ions on the other hand are formed when atoms either?gain?or?lose?electrons, causing them to become?charged The numb...
Structure of the Atom All matter is composed of?atoms, which are the smallest parts of an element that can take place in?chemical reactions Atoms are mostly made up of?empty?space?around a v...
目前，中國地區(qū)包括外籍人員子女學(xué)校和公立學(xué)校國際部（班）、民辦國際學(xué)校在內(nèi)的國際學(xué)校主要提供幾大主流課程。其中包括：A-Level、IB、AP，以及中美、中加和其他國家的國際課程。 而據(jù)一項(xiàng)針對(duì)國際學(xué)校開設(shè)相...
Square Roots of a Complex Number - Advanced Previously we looked at how to find the square roots of a complex number in Cartesian form (a+bi). We can also find square roots using polar ?and ...
關(guān)注英國留學(xué)的家長們都知道，英國中學(xué)的課程，無論是GCSE還是A-Level，都是選課制。A-level課程學(xué)三門夠嗎？ 拿離大學(xué)更近的A-Level來說，A-Level課程共有70多門科目供學(xué)生選擇，但最終用來申請(qǐng)大學(xué)的只有學(xué)生選...
AP課程，全稱Advanced Placement，中文名稱為大學(xué)預(yù)修課程。AP課程及考試始于1955年，由美國大學(xué)理事會(huì)（College Board）主辦，在高中階段開設(shè)的具有大學(xué)水平的課程，比一般的高中課程更深入、復(fù)雜和詳細(xì)。 AP課...
