Chemistry C3 1.4 The transition elements.

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Created by: Atlanta and Jacob
Created on: 27-02-16 19:33

What properties do the transition elements have in comparison to the alkali metals?

They have much higher melting points and densities, they are also stronger and harder but they are much less reactive.

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What happens when the transition elements react with oxygen or water?

They do not react vigorously.

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What ions are formed by transition elements?

They can form positive ions with different/various charges, e.g. Fe^(2+) and Fe^(3+).

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Why are transition elements and their compounds important?

They are catalysts for chemical reactions and therefore important for industry.

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How is the charge on a transition metal ion shown?

It is given by the Roman numeral in its name, for example, iron (II) chloride contains Fe^(2+) ions and so its formula is FeCl_2 and iron (III) chrloride contains Fe^(3+) ions and its formula is FeCl_3.

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Where on the periodic table are the transition elements found?

Between Groups 2 and 3.

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What else are the transition metals called?

They are all metals and so are sometimes called the transition metals.

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Except for mercury, what do all the transition elements have in common?

They have higher melting and boiling points than the alkali metals.

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What properties do the transition elements have?

They are all malleable and ductile and they are good conductors of heat and electricity, they react only slowly or not at all with oxygen and water at ordinary temperatures and most are strong, dense and useful as building materials, often as alloys.

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What do the compounds of transition metals look like?

They are often brightly coloured.

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