2.2 Group 2 Flashcards Preview

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Flashcards in 2.2 Group 2 Deck (11):
1

What is the trend in ionisation energy in group 2?

It decreases down the group
Electron shielding increases
And atomic radii increases

2

What are the trends in the reactivity in the group 2?

It increases down the group
As reactivity energy is the same as ionisation energy
Ionisation energy decreases down the group
The compounds are more likely to form

3

What are the trends are melting point in group 2?

It decreases down the group
As atomic size increases
The attraction between atoms Decrease
The strength of the bond decreases so less energy is needed

MG slightly lower than the trend due to its crystal structure

4

What are the trends in solubility of group 2 hydroxides?

They are more soluble down the group

5

What is the trends in the solubility of group 2 sulphates?

They are less soluble down the group

6

Metal + Water



(Steam)

Metal Oxide and Hydrogen

7

Metal + water

Metal Hydroxide and Hydrogen

8

Mg(OH)2

Milk of Magnesia
Stomach Acid remedy

9

Ca(OH)2

Slaked lime
Neutralise soil acidity

10

Mg(SO)4

Epsom Salts
Mild laxative

11

Ba(SO)4

Barium Meal
XRay imaging