Textbook Notes (363,178)
Canada (158,245)
Chemistry (251)
CHMA10H3 (108)
Chapter 24

Chapter 24 - Transition Metals and Coordination Compounds

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University of Toronto Scarborough
Shadi Dalili

Chapter 24 Transition Metals and Coordination Compounds 24.1 The Colour of Rubies and Emeralds - The colours of rubies and emeralds occurs because of the presence of Cr3+ ions the difference is THE CRYSTAL HOSTING THE ION 24.2: Properties of Transition Metals - Electron Configuration of 1 and 2 Transition Metal Series = [Noble Gas]ns (n-1)d 2 x - Electron Configuration of 3 and 4 Transition Metal Series = [Noble Gas]ns (n-2)f (n-1)d ; x= 1-10 x - Some elements deviate from the general pattern by promoting>1 s electron into underlying d to complete subshell (form ions by losing ns electron then the (n-1)d -Properties of transition metals are similar to each other *due to valence electron configuration) but different to main group metal properties (high melting points, high densities, moderate to very hard, and very good electrical conductors) - Irregular Electron Configuration: Because of sublevel splitting, the 4s < in energy than 3D; 4s FILLS BEFORE 3d, electron configuration must be found EXPERIMENTALLY LOOKA T SLIDE 41 rd - Atomic Size: Atomic Radii are very similar Small increase in size DOWN GROUP, 3 transition se
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