Page 48 - Chemistry_Form_2

Chemistry
for Secondary Schools

Revision exercise 2

Choose the correct answer for Questions 1-7. For other questions, provide the
answers as per the demands indicated.
FOR ONLINE READING ONLY
1. Non-metals are generally better ________ than metals.
(a) conductors of electricity

(b) brittle materials
(c) malleable materials
(d) conductors of heat

2. The electronic arrangement of an element is 2: 3. This element is in
_______ of the periodic table.

(a) Group II
(b) Group VIII
(c) Period 3
(d) Period 2

3. The following statements describe the alkaline earth metals except they

(a) burn in oxygen to form solid white oxides.
(b) become less reactive down the group.

(c) are good conductors of heat and electricity.
(d) react with water.

4. An element with electronic configuration of 2: 8: 3 belongs to Group ___
and period ____ of the periodic table.
(a) III ... 2
(b) III ... 3

(c) II ... 4
(d) II ... 5

5. Identify the electronic configuration of an element with 16 electrons.
(a) 4: 8: 4

(b) 3: 8: 5
(c) 2: 8: 6
(d) 2: 10: 4

Student’s Book Form Two 41

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