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CAIE IGCSE Chemistry 8. The Periodic Table Question Bank

Practise using Periodic Table position to compare elements, predict ion charges and explain trends across periods and down groups.

Syllabus
2026–2028
Course
Chemistry 0620

Covered syllabus points

8.1 Arrangement of elements8.2 Group I properties8.3 Group VII properties8.4 Transition elements8.5 Noble gases

8. The Periodic Table question 1

[Maximum number: 2]

The Periodic Table is a method of classifying elements.

Question (a)

(a)

Identify the element which is in Group VI and Period 4.

[ 1 ]

Question (b)

(b)

Group V chlorides are covalent molecules. The boiling points of some Group V chlorides are shown.

Table for Question (b) — CAIE IGCSE Chemistry
[ 1 ]

Question (i)

(i)

Suggest the approximate boiling point of PCl3\mathrm{PCl}_{3}.

[ 1 ]

8. The Periodic Table question 2

[Maximum number: 2]

Some elements are shown in the order they appear in the reactivity series. The most reactive element is at the top.
> sodium calcium magnesium aluminium zinc iron hydrogen copper

Question (a)

(a)

Answer the questions using the list of elements. Each element may be used once, more than once or not at all.

Identify:

[ 2 ]

Question (i)

(i)

a metal which is stored under oil

[ 1 ]

Question (ii)

(ii)

a metal that forms chlorides of the type XCl2\mathrm{XCl}_{2} and XCl3\mathrm{XCl}_{3}.

[ 1 ]

8. The Periodic Table question 3

[Maximum number: 3]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Table for Question 8. The Periodic Table question 3 — CAIE IGCSE Chemistry

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

Question (a)

(a)

forms an ion with a 2-charge

[ 1 ]

Question (b)

(b)

does not form an oxide

[ 1 ]

Question (c)

(c)

exists as diatomic molecules

[ 1 ]

8. The Periodic Table question 4

[Maximum number: 6]

Iron is a transition element. Potassium is a Group I element.

Question (a)

(a)

Transition elements are harder and stronger than Group I elements.

Describe how two other physical properties of transition elements are different from those of Group I elements.

1

2

[ 2 ]

Question (b)

(b)

Chemical properties of some Group I elements are shown in the table.

Table for Question (b) — CAIE IGCSE Chemistry
[ 4 ]

Question (i)

(i)

Add to the table:
- the flame test colours for sodium and potassium
- the predicted reactions of rubidium with water and with oxygen.

[ 4 ]
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