Back to marketplace

2.2 Group 2, alkaline earth metals

No description yet. This curated deck is ready for daily study.

Total cards: 20•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (20)

#1
Front (Question)

What is the trend in atomic radius down group 2?

Back (Answer)

• Increases • Atoms get bigger, and an extra shell each time. • So radius gets bigger

#2
Front (Question)

What is the trend in 1st IE down group 2?

Back (Answer)

• Decreases - Takes less energy to remove outer electrons as it goes down due to bigger AR.

#3
Front (Question)

What is the trend in melting point group 2?

Back (Answer)

• Decreases • Bigger AR, so weaker attraction. • Strength of metal bond decreases so need less energy to break them.

#4
Front (Question)

What is the anomaly in melting point in group 2?

Back (Answer)

Magnesium has the lowest MP in group 2.

#5
Front (Question)

What is the trend in reactivity down group 2?

Back (Answer)

• Increases • In reactions, gr 2 loses 2 outer electrons • As you go down the group, the AR is bigger so easier to lose • Therefore reactivity increases.

#6
Front (Question)

What are the conditions for Mg and water? What does it form?

Back (Answer)

• V slow in cold • Only occurs in hot White powder

#7
Front (Question)

Mg + Water =

Back (Answer)

Mg0 + Hydrogen gas

#8
Front (Question)

What are the conditions for Ca and water? What does it form?

Back (Answer)

• Faster in cold • More vigorous in steam White solid

#9
Front (Question)

Ca + Water =

Back (Answer)

Calcium Hydroxide + hydrogen gas

#10
Front (Question)

What are the conditions for Sr and water? What does it form?

Back (Answer)

• v. vigorous effervescence in hold & cold Colourless

#11
Front (Question)

Sr + Water =

Back (Answer)

Strontium Hydroxide + Hydrogen gas

#12
Front (Question)

What are the conditions for Ba and water? What does it form?

Back (Answer)

• v. vigorous effervescence in hold & cold Colourless

#13
Front (Question)

Ba + Water =

Back (Answer)

Barium Hydroxide + Hydrogen gas

#14
Front (Question)

Are group 2 oxidised or reduced?

Back (Answer)

Oxidised

#15
Front (Question)

What is the trend in gr2 hydroxide solubility?

Back (Answer)

Increases down the group.

#16
Front (Question)

What is the trend in gr2 sulphates solubility?

Back (Answer)

Decreases down the group.

#17
Front (Question)

How to test for sulfates?

Back (Answer)

• Add nitric acid or hydrochloric acid to remove carbonate ions. • Add barium chloride solution to test. • White solid if positive tests.

#18
Front (Question)

What is the use of barium sulphates?

Back (Answer)

• Barium meals • Insoluble so safe to ingest • Used to outline the gut for X-Rays.

#19
Front (Question)

What is the use of magnesium hydroxide?

Back (Answer)

• Base that reacts with hydrochloric acid in the stomach to form MgCl and water. • Used as antacid. • Insoluble so safe to consume.

#20
Front (Question)

What is the use of calcium hydroxide?

Back (Answer)

• Used in agriculture • Increases the pH of soil to increase the crop yield. • Can use the CaO to neutralise acids in soil.