Transition Metal Definitions Quiz

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1. The reaction of copper(II) ions and hydrochloric acid

  • [Cu(H2O)6]2+(aq) +4CL-(aq) --> [CuCl4]2-(aq) +6H2O(l)
  • From pale blue to dark blue, in the reaction four of the water ligands are replaced by four ammonia ligands [Cu(NH3)4(H2O)2]2+
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2. Fe3+ ions are pale yellow in solution and when reacted with NaOH they form

  • Rusty brown precipitate (iron(III)hydroxide)
  • Blue precipitates, turning beige in the presence of air

3. In the formula of the complex ion, square brackets group together the species making up the complex ion and

  • The overall charge is shown outside the brackets (the overall charge is shown outside the brackets)
  • A molecule or ion that can donate a pair of electrons with the transition metal ion to form a coordinate bond

4. A transition element is

  • A d-block element that forms an ion with an incomplete d sub shell
  • The 4s orbital fills before the orbitals in the 3d sub shell. The d block metals will have filled there 4s orbital before electrons are added to the 3d sub shell

5. The transition elements from titanium to copper all form ions with two or more

  • Oxidation states, all forming compounds with ions in the 2+ oxidation state (this is usually the result of losing two electrons from 4s orbital, which are lost first as when full 4s is in a higher energy level that 3d)
  • The 4s orbital fills before the orbitals in the 3d sub shell. The d block metals will have filled there 4s orbital before electrons are added to the 3d sub shell

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I'm sorry about the last comment, my friend wrote it because he didn't want to accept that he got some answers wrong in this quiz. I just got 100% on this quiz and with it It helped enhance my knowledge on Transition Metals as a whole. Keep up with the resources guys!!! 

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