Group 2 Flashcards
1
Q
What is a common name given to group 2 ions?
A
Alkaline earth metals
2
Q
What is the most reactive group 2 element?
A
Barium
3
Q
List 3 physical properties of group 2 metals
A
High M & B points
Low density
Form colourless (white) compounds
4
Q
Does reactivity increase or decrease down group 2?
A
It increases as you go down the group as electrons are lost easier due to electron shielding
5
Q
What happens to the first ionisation energies as you go down group 2?
A
Decreases because:
Increased shielding
Increased atomic radium
Weaker nuclear attraction
6
Q
What type of reaction is the reaction between group 2 elements and oxygen?
A
Redox
7
Q
What are the products when group 2 elements reacts with dilute acid?
A
Salt & hydrogen gas
8
Q
What is formed when group 2 metals react with water?
A
Metal hydroxide
