Question 1
Elements are arranged in the periodic table.
Figure 1 shows the position of five elements in the periodic table.
Which element in Figure 1 is a metal?
Tick () one box.
C Ca Cl He Si
[1 mark]
Which element in Figure 1 is a halogen?
Tick () one box.
C Ca Cl He Si
[1 mark]
Which element in Figure 1 forms fullerenes?
Tick () one box.
C Ca Cl He Si
[1 mark]
Which element in Figure 1 has atoms with a stable arrangement of electrons?
Tick () one box.
C Ca Cl He Si
[1 mark]
Which two elements in Figure 1 have atoms with the same number of electrons in their outer shell?
[1 mark]
Figure 2 shows some of the elements in Group 1 of the periodic table.
An atom of lithium has 3 electrons.
Complete Figure 3 to show the electronic structure of lithium.
Figure 3
[1 mark]
Which of the Group 1 elements in Figure 2 is the most reactive?
[1 mark]
Figure 4 shows sodium reacting with water.
Give two observations that can be made when sodium reacts with water.
[2 marks]
Sodium reacts with water to produce an alkaline solution.
What is the name of the alkaline solution produced?
Tick () one box.
Sodium chloride solution
Sodium hydroxide solution
Sodium sulfate solution
[1 mark]