Periodic Table

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Wikimedia Commons, public domain (CC0)The periodic table

FreeScienceLessons · AQA ChemistryThe Periodic Table — groups and periods

Cognito · AQA ChemistryPeriodic Table trends

Key facts

Structure of the periodic table — fill in the table

Term	Meaning
Atomic number (proton number)
Period
Group
Same group
Metals
Non-metals
Metalloids

Group 1 — alkali metals (Li, Na, K, Rb, Cs, Fr) — fill in the table

Property	Detail
Outer electrons
Reactivity trend
Reaction with water
Density and hardness
Storage

Group 7 — halogens (F, Cl, Br, I, At) — fill in the table

Property	Detail
Outer electrons
Reactivity trend
Displacement
Appearance (room temp)
Uses

Transition metals — fill in the table

Property	Detail
Location
Physical properties
Ion charges
Compounds
Catalysts
Reactivity

Exam questions — 4 questions · 11 marks

1 markGroup trendsAQA 8462 style

Which statement correctly describes the reactivity of Group 1 metals?

A Reactivity decreases down the group as atomic radius increases

B Reactivity increases down the group as the outer electron is further from the nucleus and more easily lost

C Reactivity stays the same because all Group 1 metals have 1 outer electron

D Reactivity decreases down the group as density increases

1 markHalogen displacementAQA 8462 style

Chlorine water is added to potassium iodide solution. What would you observe?

A No reaction — chlorine is less reactive than iodine

B The solution turns brown as iodine is displaced by chlorine

C A white precipitate forms

D Hydrogen gas is produced

4 marksGroup 1 reactionsAQA 8462 P1 style

Potassium is added to water. Write the word equation and symbol equation for this reaction, and explain why potassium reacts more vigorously than lithium. (4 marks)

Hint: Write both equations then explain using electron configuration and nuclear attraction.

+40 XP

4 marksTransition metals vs Group 1AQA 8462 P1 style

Give three ways in which transition metals differ from Group 1 metals in their properties. (3 marks)

Hint: Pick three clear contrasts. Use the word "than" to compare directly.

+40 XP

Quick recall flashcards

Structure of the periodic table — fill in the table

Group 1 — alkali metals (Li, Na, K, Rb, Cs, Fr) — fill in the table

Group 7 — halogens (F, Cl, Br, I, At) — fill in the table

Transition metals — fill in the table

Module complete! 🎉