A Level Chemistry | Chemistry of Transition Elements | Lecture 4 | Complexes | Cobalt Complexes

To join our Free Trial Lesson, Join our Whatsapp Community Now! https://chat.whatsapp.com/CWSRaMi4i3w... or msg at +92 323 509 4443 To purchases recorded courses with notes https://megalecture.com/courses/ A Level Chemistry | Chemistry of Transition Elements | Lecture 4 | Complexes | Cobalt Complexes Book a FREE demo class for Oct Nov 2022 session through the link below: https://docs.google.com/forms/d/e/1FA... "1 define a transition element as a d-block element which forms one or more stable ions with incomplete d orbitals 2 sketch the shape of a 3dxy orbital and 3dz2 orbital 3 understand that transition elements have the following properties: (a) they have variable oxidation states (b) they behave as catalysts (c) they form complex ions (d) they form colored compounds 4 explain why transition elements have variable oxidation states in terms of the similarity in the energy of the 3d and the 4s sub-shells 5 explain why transition elements behave as catalysts in terms of having more than one stable oxidation state, and vacant d orbitals that are energetically accessible and can form dative bonds with ligands 6 explain why transition elements form complex ions in terms of vacant d orbitals that are energetically accessible Visit our website for video courses and other resources: https://megalecture.com/courses/ AS Chemistry:    • AS Chemistry (New)   A2 Chemistry:    • A2 Chemistry  (New)   AS Physics:    • AS Physics   A2 Physics:    • A2 Physics   O level Physics:    • O Level Physics   NET Physics:    • NET Physics   AS Maths:    • AS Mathematics   O level Maths:    • O Level Mathematics   NET Maths:    • NET Past Papers   AS Business:    • Playlist   A2 Business:    • Playlist   AS Economics:    • Playlist   A2 Economics:    • Playlist   SAT Sample Papers:    • SAT Mathematics Past Papers