CHEMISTRY Unit 1.6/1.6 (AQA - Transition metals, relative atomic mass, and electronic structure)

How do the melting and boiling points of transition metals compare to group 1?

Transition metals have much higher melting and boiling points than group 1 metals

How do the hardness and strength of transition metals compare to group 1?

Transition metals are harder and stronger and denser

How do transition metals and group 1 metals compare in terms of reactivity with oxygen and water?

Group 1 metals are very reactive and react quickly with water and oxygen. Transition metals have low reactivity and react very slowly or not at all.

What is unique about the ions formed by transition metals compared to group 1 metals?

Transition metals can form ions with different positive charges where’s group 1 metals only ever form +1 ions

What is a characteristic physical property of transition metal compounds regarding colour?

Transition metal compounds are usually coloured

What is a common use of transition metals or their compounds in industrial chemistry?

They are widely used a catalysts

What is the definition of the relative atomic mass (Ar) of an element?

It is an average value that takes account of the abundance of the isotopes of the element.

How do electrons fill the energy levels (shells) in an atom?

They occupy the lowest available energy levels (the innermost shells first) before moving to outer shells.