GCSE Chemistry - Atomic Structure - 4 - Exam Style Questions with Answers

Created on January 30, 2023 By

paruppts12

GCSE_EDE_CHE_1_ATOM_4

1 / 10

State the maximum number of covalent bonds formed by a carbon atom in a diamond crystal.

1

3

4

2

2 / 10

Which of the following statements about diamond and graphite is true?

they both have high melting points

they are both soluble in water

they both cut glass

they are both good conductors of electricity

3 / 10

Sodium chloride is a metal chloride which is soluble in cold water.
Give the name of a metal chloride which is insoluble in cold water.

magnesium chloride

lead chloride

copper chloride

potassium chloride

4 / 10

Hydrogen, carbon, oxygen and chlorine can all form covalent bonds by sharing electrons.
How many electrons does each element need to share in order to complete its outer shell?

H= 1; C= 4; O= 6; Cl= 2

H= 1; C= 4; O= 2; Cl= 1

H= 1; C= 4; O= 4; Cl= 2

H= 1; C= 4; O= 6; Cl= 7

5 / 10

An oxygen molecule, O , is formed when two oxygen atoms covalently bond together.
How many electrons need to be shared between these two oxygen atoms?

6

2

4

3

6 / 10

C

B

D

A

7 / 10

Complete the sentence.
Oxygen has a low boiling point because there are…………….

weak forces of attraction between the oxygen molecules

weak covalent bonds between the oxygen atoms

weak covalent bonds between the oxygen molecules

weak forces of attraction between the oxygen atoms

8 / 10

Ammonia, NH , is a small covalent molecule. How many non-bonding, outer-shell electrons are present in one molecule of ammonia?

2

0

5

6

9 / 10

Which statement is not true about covalent bonding?

Covalent bonding occurs to allow atoms to have stable, full outer shells of electrons

Covalent bonding can result in small molecules being formed

Two atoms share at least one pair of electrons between them

Covalent bonds are weaker than ionic bonds

10 / 10

A

B

C

D

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