A-Level夏季大考放榜,A-Level考試申訴、補錄、重考流程解析
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...
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...
Hydrogen Bonding Hydrogen bonding Hydrogen bonding?is the?strongest?form of?intermolecular bonding Intermolecular bonds are bonds?between?molecules Hydrogen bonding is a type of?permanent dipole – ...
Covalent Bonding: Bond Energy & Length Bond energy The?bond energy?is the energy required to?break?one mole of a particular covalent bond in the gaseous states Bond energy has units of kJ mol-1...
Covalent Bonding: Orbitals & Hybridisation Bond overlap in covalent bonds A single?covalent?bond?is formed when two nonmetals combine Each atom that combines has an?atomic?orbital?containing a ...
Dative Bonding: Definition & Examples In?simple?covalent?bonds?the two atoms involved shares electrons Some molecules have a?lone?pair of electrons that can be donated to form a bond with an?el...
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