Lattice Structures Most ionic, metallic and covalent compounds are?crystalline lattice The ions, atoms or molecules are arranged in a?regular and repeating arrangement Giant ionic lattices An?ionic...
Gases: Ideal Gas Law & Equation Kinetic theory of gases The kinetic theory of gases?states that molecules in gases are constantly moving The theory makes the following assumptions: The gas mole...
Gases: Gas Pressure Gases?in a container exert a?pressure?as the gas molecule are constantly?colliding?with the wall of the container Gas particles exert a pressure by constantly colliding with the...
Dot & Cross Diagrams Dot and cross diagrams?are diagrams that show the arrangement of the outer-shell electrons in an?ionic?or?covalent?compound or element The electrons are shown as dots and c...
A-Level大考今日放榜，同學們可以抓緊時間查詢自己的分數。出分后，AS階段的考生若對此次A-Level成績滿意，即可著手準備2023年的留學事宜；A2階段的考生若成績滿足院校申請要求，那么后續只需等待相應院校的確認...
此前由于疫情原因，各個國際大考相繼出現考試形式的更改問題，其中個別地區的A-Level大考就因此轉換為POE或TAG形式，許多同學不免擔憂評估出分會導致高分通脹情況。 同學們的擔憂是否會成為既定事實？相信隨著今...
Comparing Bonds to Intermolecular Forces Intramolecular forces Intramolecular forces?are forces?within?a molecule Ionic bonding?is the?electrostatic attraction?between?positive?(cations) and?negati...
van der Waals' Forces & Dipoles Covalent bonds are strong?intramolecular forces Molecules also contain weaker?intermolecular forces?which are forces?between?molecules These intermolecular force...
Polarity & Dipole Moments Electronegativity?is the ability of an atom to draw a pair of electrons towards itself in a covalent bond Electronegativity?increases?across a Period and?decreases?goi...
