Transition Metals and Nanoparticles

Question 1

Transition Metals Properties

Answer 1

• Relatively high melting point
• Relatively high density
• Relatively high strength
• Relatively high hardness
• React very slowly

Question 2

Transition Metals as Catylists

Answer 2

Very useful catalysts - they speed up reactions without being used up - ability of transition metals to adopt multiple oxidation states, form complexes, and form strong bonds with other atoms makes them highly effective catalysts.

Question 3

Transition Metals as Coloured Compounds

Answer 3

When transition metals form compounds, they take on a distinct colour. For instance, cobalt(III) sulfate is red.

Question 4

Charges and Ions: Transition Metals

Answer 4

NAUGHTY CHILDREN
They do not behave regularly and are spontaneously charged - thus they can form many differently charged ions. Copper for instance, can form Cu+ OR Cu2+ ions.

In compounds the charge is automatically given in brackets roman numerals.