Properties of transition metals (1.3) Flashcards
What are the transition metals?
metals with similar properties which are different from those of the elements in Group 1
What are the differences between Group 1 metals and Transition metals in terms of physical properties?
Transition metals are:
- stronger
- harder
- more dense
- have higher melting points (except mercury, which is a liquid at rm temp)
also are better conductors of heat/electricity
What is the difference in reactivity (with oxygen, water and halogens) between Group 1 metals and transition metals?
Transition metals are less reactive and need more energy for a reaction to occur (often slower as well)
3 needed
What are some of the typical properties of transition elements?
- have ions with different charges
- form coloured compounds
- used as catalysts
Why do transition metals have similar properties? (answer based on electronic structure)
Transition metal usually have same/similiar number of outer electrons
as the inner energy level is being filled
There are no transition elements between the Group 2 element magnesium and the Group 3 element aluminium.
Give a reason why, in terms of electronic structure.
2nd energy level can only have a maximum of 8 electrons