Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Transition Metals

Properties, Complex Ion

What are the 4 features of Transition Elements: They have variable Oxidation States, They show Catalytic Activity, They form Coloured ions and they form Complex Ions with Ligands.
Define Transition Element: Forms at least 1 stable Ion with a Partially filled D Sub-Shell.
What is a Complex Ion? This is when a transition metal is surrounded by other ions or molecules and bonded by co-ordinate bonds.
Define Ligand: An atom, ion or molecule with lone pairs of electrons which can use these lone pairs to form Dative Covalent bonds with a metal ion.
What is the Coordination Number: The number of ligands which surround a Metal Ion.
What are the three types of Ligand: Unidentate, Bidentate and Multidentate.
Unidentate: A ligand which is capable of forming 1 Coordinate bond (H2O, NH3, Cl-, OH- etc).
Bidentate: A ligand which is capable of forming two coordinate bonds (Ethan-1,2-Diamine etc).
Multidentate Ligands: Ligands which are capable of forming more than 2 coordinate bonds. Such as EDTA4-/
Name a Multidentate ligand and give a use for it: EDTA4-, used in medicine to remove Transition metals from body as it forms 6 coordinate bonds.
Describe how Haemoglobin is a Fe2+ ion surrounded by a multidentate ligand.
What are the four shapes of complex ions I am likely to come across: Octahedral, Tetrahedral, Square Planar and Linear.
How do Octahedral shapes come about? Smaller ligands (such as H2O or OH- etc) can fit 6 of themselves around a Metal ion, and the maximum amount of bonds will be formed in order to release the max amount of energy.
How do Tetrahedral or Square Planar shapes come about? The larger Ligands, such as Cl-, do not allow as many as the small to be around one metal ion so, a max of 4 will be around these ions.
Name the two common ions that are Tetrahedral: [CoCl4]2- and [CuCl4]2-
Name the anti cancer drug that is Square planar: Cis-Platin.
Name a simple linear complex and its use: [Ag(NH3)2]+, used in Tollens reagent.
Created by: mjwilson1988



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards