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2.2 Group 2

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

Card preview (24)

#1
Front (Question)

Melting point of group 2 elements

Back (Answer)

High - Giant mettalic lattice - Strong electrostatic forces of attraction - Lots of energy to break metalic bonds

#2
Front (Question)

Density of group 2 (relative to group 1)

Back (Answer)

Higher density - Group 2 ions are smaller - Pack closer together

#3
Front (Question)

Reactivity of group 2 elements

Back (Answer)

All reactive metals (similar reactions as they have the same number of electrons in their outer shell)

#4
Front (Question)

Appearance of group 2 compounds

Back (Answer)

White crystalline ionic solids

#5
Front (Question)

Trend in atomic radius down group 2

Back (Answer)

Increases - Atoms become larger - More shellls + shielding - Nuclear attraction to outer electron is less

#6
Front (Question)

Trend in first ionisation energy down group 2

Back (Answer)

Decreases - More main shells + shielding - Weaker attraction between nucleus and electron being removed

#7
Front (Question)

Trend in melting point down group 2

Back (Answer)

Decreases - Metallic ions get bigger - Less attraction between ions and delocalised electrons

#8
Front (Question)

Trend in reactivity down group 2

Back (Answer)

Increases - React by losing electrons - More shells + shielding - Less nuclear attraction to the 2 outer electrons

#9
Front (Question)

Use of Magnesium

Back (Answer)

Extracting Ti from TiCl₄

#10
Front (Question)

Two reactions used to extract titanium from titanium oxide

Back (Answer)

React titanium oxide with chlorine and carbon Reduce titanium chloride with magnesium

#11
Front (Question)

What makes titanium chloride easy to purify?

Back (Answer)

It is a liquid (distillation can be used)

#12
Front (Question)

Why is titanium difficult to extract from ores?

Back (Answer)

Reduction with carbon cannot be used (forms TiC, a brittle titanium carbide)

#13
Front (Question)

Trend in solubility down group 2 hydroxides

Back (Answer)

Increases

#14
Front (Question)

Solubility of Magnesium hydroxide

Back (Answer)

Sparingly soluable

#15
Front (Question)

Solubility of Barium hydroxide

Back (Answer)

Fully soluable

#16
Front (Question)

Trend in pH down group 2 hydroxides

Back (Answer)

Increases

#17
Front (Question)

Why does pH change down group 2 hydroxides?

Back (Answer)

Differences in solubility changes the number of hydroxide ions released into a solution

#18
Front (Question)

pH of Magnesium hydroxide

Back (Answer)

Around 8

#19
Front (Question)

pH of Barium hydroxide

Back (Answer)

Around 13

#20
Front (Question)

Use of Magnesium hydroxide

Back (Answer)

As an antacid to neutralise excess stomach acid

#21
Front (Question)

Use of calcium hydroxide

Back (Answer)

In agriculture to neutralise acidic soil

#22
Front (Question)

Trend in solubility down group 2 sulfates

Back (Answer)

Decreases

#23
Front (Question)

Solubility of Magnesium sulfate

Back (Answer)

Fully soluable

#24
Front (Question)

Solubility of Barium sulfate

Back (Answer)

Insoluable