AY 2425 JC2 Review Transition

Review

Open Ended

write down the electronic configuration of chromium atom

Open Ended

write down the electronic configuration of silver atom

Open Ended

write down the electronic configuration of iron(III) ion

Open Ended

write down the electronic configuration of nickel(II) ion

Open Ended

by using the standard electrode potential data, what will happen if magnesium reacts with nickel(II) ions?

Match

Match the following

• o.n of Cr in CrO4 2-

• o.n of Fe in Fe2O3

• o.n of Cu in CuSO4

• o.n of Mn in MnO4 -

+6

+3

+2

+7

• +6

• +3

• +2

• +7

what is transition elements?

Multiple Choice

which one is/are the best definition of transition elements?

• Transition elements are all metals that do not conduct electricity.
• Transition elements have completely filled d-orbitals.
• Transition elements are only found in the f-block of the periodic table.
• Transition elements are d-block elements that forms one or more stable ions with partially filled d-orbitals.

Multiple Select

tick the following that are transition elements

• Gold
• Lead
• Zinc
• nickel

• vanadium

Match

Vanadium ion exists in several color.

match the color with its respective oxidation number

• purple, V2+

• green, V3+

• blue, VO 2+

• yellow, VO2 +

+2

+3

+4

+5

• +2

• +3

• +4

• +5

Match

Match the following

the oxidation number of each transition metal ion / compound

• orange Cr2O7 2-

• purple MnO4 -

• green Ni2+

• orange FeCl3

+6

+7

+2

+3

• +6

• +7

• +2

• +3

Open Ended

explain why the maximum oxidation number of manganese is +7?

physical and chemical properties of transition elements

Multiple Select

tick all of the physical properties of transition elements

• High melting points,

• high density

• good conductors of heat and electricity

• form colored compounds

• hard and rigid

​redox reaction

read tb on this section

Open Ended

which one is stronger oxidizing agent, MnO4 - or Br2? explain.

Open Ended

which one is stronger oxidizing agent, V3+ or Br2? explain.

​ligand and complex formation

Multiple Select

which statement(s) describe ligand

• molecule or ion that donates pair of electron to central ion

• it forms coordinative bonds

• it forms ionic bond

• ligand and central metal ion form complex ion/compound

Open Ended

give your answer below

​stereoisomerism in complex

Open Ended

which one is more polar, cis or trans structure?

​optical isomerism

substitution of ligand

​stability constant

​color of complexes