Properties of Transition Metals Practice Questions

Which element is a transition element?

Tick (✓) one box.

• Calcium (Ca)
• Magnesium (Mg)
• Manganese (Mn)
• Strontium (Sr)

Give two chemical properties of most transition metals that Group 1 metals do not have.

Copper does not react with cold water. Sodium reacts vigorously with cold water.

What does this show about the reactivity of transition metals compared with Group 1 metals?

Use Table 1 to give two differences between the physical properties of the Group 1 metals and the transition metals.

Cobalt is a transition element.

Which is the most likely melting point of cobalt?

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• 29 °C
• 660 °C
• 1495 °C

Other than melting point and density, give one physical property in which transition metals are different from Group 1 metals.

Name the two transition metals in the compounds in Table 2.

Use Table 2 to give one difference between the compounds of transition metals and the compounds of Group 1 metals.

Chromium is a transition element. It forms the compound chromium(III) sulfate.

Which is the most likely colour of solid chromium(III) sulfate?

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• Colourless
• Green
• White

A freshly cut piece of sodium and a clean piece of nickel are each left on a watch glass in air at room temperature.

Describe how the reaction of sodium with oxygen is different from the reaction of nickel with oxygen.

Both metals react with chlorine.

Nickel reacts with chlorine when heated to produce a chloride containing $\mathrm{Ni^{2+}}$ ions.

Give the formula of this nickel chloride and state which of the two metals reacts more vigorously with chlorine.

Coins are made from alloys containing nickel and copper. They are not made from sodium.

Suggest two reasons why nickel is a more suitable metal than sodium for making coins.

Use Table 3 to name the two solids that acted as catalysts in this reaction.

Use the periodic table to explain the results in Table 3.

Manganese also forms the oxide $\mathrm{Mn_2O_3}$.

The oxide ion is $\mathrm{O^{2-}}$.

Deduce the charge on the manganese ion in $\mathrm{Mn_2O_3}$ and state which property of transition metals this shows, when compared with $\mathrm{MnO_2}$.

Give the letter of the element that is a transition element.

Element X forms two chlorides, with the formulae $\mathrm{XCl_2}$ and $\mathrm{XCl_3}$.

What does this show about the ions formed by element X?

Compare two physical properties of element W with those of element X.