Define Degenerate & non-Degenerate d Orbitals There are five d orbitals in an isolated transition element atom or ion An isolated transition element is one that is not bonded to anything else T...
CAIE剑桥国际考评部已经于2022年8月11日公布了今年夏季Alevel大考成绩。已经查到成绩的同学们都考得怎么样呢？都考到了目标分数了吗？ 虽然今年国内部分地区因为疫情采用了POE的评分方式，但大部分同学还是参加了...
Geometry of the Transition Element Complexes Depending on the size of the ligands and the number of dative bonds to the central metal ion, transition element complexes have different geometries Dat...
Define Complex A complex is a molecule or ion formed by a central metal atom or ion surrounded by one or more ligands A ligand is a species that contains one or more lone pairs of electrons The lig...
Define Ligand A ligand is a molecule or ion that has one or more lone pairs of electrons These lone pairs of electrons are donated by the ligand, to form dative covalent bonds to a central metal at...
Transition Elements: Ligands & Complex Formation Transition element ions can form complexes which consist of a central metal ion and ligands Copper(II) and cobalt(II) ions will be used as examp...
Effects of the 3d & 4s Subshells on Oxidation States of the Transition Elements Transition elements can have variable oxidation states These variable oxidation states can be formed as the 3d an...
Define Transition Element Transition elements are d-block elements which form one or more stable ions with an incomplete d subshell They are all metals found in the d-block of the Periodic Table, b...
Effect of Ionic Radius on Thermal Stability of Group 2 Nitrates & Carbonates The Group 2 nitrates and carbonates become more thermally stable going down the group The charge density of the cati...
