Reactivity Trends

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

Card preview (24)

Front (Question)

What are group 2 metals called?

Back (Answer)

Alkaline Earth Metals

Front (Question)

What are group 2 metals found as on Earth?

Back (Answer)

Stable compounds such as calcium carbonate

Front (Question)

How does the electron configuration of Group 2 metals differ from that of a noble gas?

Back (Answer)

Two more electrons than the nearest noble gas

Front (Question)

What is the most common type of reaction of group 2 elements?

Back (Answer)

Redox

Front (Question)

What happens to a group 2 metal during a redox reaction?

Back (Answer)

Oxidised Loses 2 electrons Becomes a 2+ ion

Front (Question)

Is group 2 an oxidising agent or reducing agent? Why?

Back (Answer)

Reducing agent- reduces another species by being oxidised

Front (Question)

What is the reaction of a group 2 metal and oxygen?

Back (Answer)

Group 2 metal + oxygen = Metal Oxide

Front (Question)

What happens when magnesium burns?

Back (Answer)

Magnesium burns with a bright light

Front (Question)

What happens when a group 2 metal reacts with water?

Back (Answer)

Metal + Water = Metal hydroxide + Hydrogen

#10

Front (Question)

What happens to reactivity of group 2 metals with water down the group?

Back (Answer)

Reactivity increases down the group

#11

Front (Question)

What happens when a group 2 metal reacts with acid?

Back (Answer)

Metal + Acid = Salt + Hydrogen

#12

Front (Question)

What happens to reactivity in group 2 metals? Why?

Back (Answer)

Increases Requires 2 ionisation energies. Ionisation energy decreases because of greater shielding and atomic radii.

#13

Front (Question)

What is the reaction of group 2 oxides with water?

Back (Answer)

Group 2 oxide + water= metal hydroxide

#14

Front (Question)

Explain trend in solubility of hydroxides

Back (Answer)

Increases down the group Resulting solutions contain more OH- ions

#15

Front (Question)

Explain trend in alkalinity of hydroxides

Back (Answer)

Solubility increases More OH- ions Increase in pH Increase in alkalinity

#16

Front (Question)

What is the pH of magnesium hydroxide?

Back (Answer)

#17

Front (Question)

What is the pH of barium hydroxide?

Back (Answer)

#18

Front (Question)

How are group 2 compounds used in agriculture?

Back (Answer)

Ca(OH)2 are added to fields as lime to increase pH of acidic sols

#19

Front (Question)

What is the equation of group 2 compounds in agriculture?

Back (Answer)

Ca(OH)2 (s) + 2H+(aq) = Ca 2+(aq) + 2H20(l)

#20

Front (Question)

Which 2 group 2 compounds are used in medicine?

Back (Answer)

CaCO3 Mg(OH)2

#21

Front (Question)

Give the 2 equations of group 2 compound s in medicine

Back (Answer)

Mg(OH)2 +2HCl = MgCl2 + 2H20 CaCO3+ 2HCl = CaCl2 +H20 + CO2

#22

Front (Question)

Where are halogens found?

Back (Answer)

Sea Water Potassium and Sodium deposits

#23

Front (Question)

What is the appearance and state of fluorine at room temperature and pressure?

Back (Answer)

Pale yellow gas

#24

Front (Question)

What is the appearance and state of chlorine at room temperature and pressure?

Back (Answer)

Pale green gas