Group 2 Flashcards
(8 cards)
What is produced in the decomposition Of metal carbonates?
Oxides and carbon dioxides
Describe and explain what happens to the melting point as you descend group 2?
Lower-weaker attraction between cations and delocalised electrons
Extra shell of electrons
Bigger ionic radius
Describe and explain what happens to the FIE going down group 2?
Decreases- more electron shielding
Bigger atomic radius
Weaker attraction between nucleus and electrons
How do group 2 metals react with water?
Hydroxide and hydrogen
What happens to the reactivity of group two downwards?
Increases- more electron shielding
Bigger atomic radius
Weaker attraction between nucleus and electrons.
Electrons easier to remove
Describe and explain what happens to the atomic radius going down group 2?
Increases-more shielding from extra shell
How do group 2 metals react with oxygen?
Metal oxide
What forms when group 2 metal oxides react with water?
Hydroxides