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3.1.2 - Group 2

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is a common name given to group 2 metals?

Back (Answer)

Alkaline earth metals

#2
Front (Question)

What is the most reactive metal of group 2?

Back (Answer)

Barium

#3
Front (Question)

List 3 physical properties of group 2 metals

Back (Answer)

High melting and boiling points Low density metals Form colourless (white) compounds

#4
Front (Question)

The highest energy electrons of group 2 are in which subshell?

Back (Answer)

S subshell

#5
Front (Question)

Does reactivity increase of decrease down group 2?

Back (Answer)

Increases Electrons are lost more easily because larger atomic radius and more shielding

#6
Front (Question)

What happens to the first ionisation energy as you go down group 2? Why?

Back (Answer)

Decreases because: Number of filled electron shells increases down the group —-> increased shielding Increased atomic radius —-> weaker forces between outer electrons and nucleus —–> less energy needed to remove electron

#7
Front (Question)

What type of reaction is the reaction between group 2 elements and oxygen?

Back (Answer)

Redox reaction

#8
Front (Question)

Write an equation for the reaction of calcium and oxygen

Back (Answer)

2Ca (s) + O2 (g) ——–> 2CaO (s)

#9
Front (Question)

What are the products when group 2 elements react with water?

Back (Answer)

Hydroxide and hydrogen gas

#10
Front (Question)

Which group 2 element does react with water?

Back (Answer)

Beryllium

#11
Front (Question)

Which group 2 element reacts very slowly with water?

Back (Answer)

Magnesium

#12
Front (Question)

What type of reaction is the reaction between group 2 metal and water?

Back (Answer)

Redox reaction

#13
Front (Question)

Write an equation for the reaction of barium and water

Back (Answer)

Ba (s) + 2H2O (l) —-> Ba(OH)2 (aq) + H2 (g)

#14
Front (Question)

What is oxidised in a reaction between group 2 metal and water?

Back (Answer)

Metal is oxidised One hydrogen atom from each water is reduced

#15
Front (Question)

What are the products when a group 2 element reacts with a dilute acid

Back (Answer)

Salt and hydrogen gas

#16
Front (Question)

Write an equation for the reaction of calcium and hydrochloric acid

Back (Answer)

Ca (s) + 2HCl (aq) ——> CaCl2 (s) + H2 (g)

#17
Front (Question)

What is formed when group 2 oxides react with water?

Back (Answer)

Metal hydroxides

#18
Front (Question)

Write an equation for the reaction between a group 2 oxide and water

Back (Answer)

MO (s) + H2O (l) ——> M(OH)2 (aq)

#19
Front (Question)

What group 2 metal oxide is insoluble in water?

Back (Answer)

Beryllium oxide

#20
Front (Question)

What is the trend in hydroxide solubility down group 2?

Back (Answer)

/Increases down the group Mg(Oh)2 is slightly soluble Ba(OH)2 creates a strong alkaline solution

#21
Front (Question)

What is Ca(OH)2 used for? Write an equation related to one of its uses

Back (Answer)

Used to neutralise soil Ca(OH)2 (aq) + 2HCl (aq) —-> 2H2O (l) + CaCl2 (aq)

#22
Front (Question)

What is Mg(OH)2 used for?

Back (Answer)

Milk of magnesia-antacid to treat indigestion, heartburn etc

#23
Front (Question)

What is calcium carbonate used for?

Back (Answer)

Present in limestone and marble Used in building construction

#24
Front (Question)

What is the drawback of using calcium carbonate in construction? Write a related equation

Back (Answer)

Group 2 carbonated react with acid CaCO3 (s) + 2HCl (aq) —-> CaCl2 (aq) + H2O (l) +CO2 (g)