Name:…………………………………………………….
Date: ……………………
Alkali Metals and Halogens Worksheet
This worksheet accompanies Group 1 - Alkali Metals Summary
and Group 7 - Halogens Summary.
1. Complete this table about the characteristics of alkali metals.
Characteristics of alkalis
Characteristics shared with other metals
1.
1.
2.
2.
3.
2. Draw a line through one of the words in bold to complete each of these
sentences about alkali metals correctly.
•
Alkali metals generally become more / less dense going down the group.
•
The melting and boiling points of alkali metals increase / decrease down the group.
•
The softness of alkali metals increases / decreases going down the group.
•
The speed with which alkali metals react with oxygen increases / decreases going
down the group.
•
The reaction with water becomes more / less vigorous going down the group.
1
Name:…………………………………………………….
Date: ……………………
3. Complete the equation below.
Sodium
Potassium
+
water
+
→
Hydrochloric acid
→
4. Link the alkalis on the left with a description of how they react with water on
the right by drawing a line between them.
lithium
floats, moves very quickly and fizzes
sodium
floats, moves slowly and fizzes
caesium
floats, moves quickly, melts and fizzes
gas may ignite with an orange flame
potassium
explodes almost instantly and breaks
the glass container
5. List three precautions that should be taken when working with group 1 metals.
1……………………………………………………………………………...
2……………………………………………………………………………...
3………………………………………………………………………………
2
Name:…………………………………………………….
Date: ……………………
6. Link the halogens on the left with their colours on the right by drawing a line
between them.(Research based)
iodine
pale yellow
bromine
green-yellow
fluorine
dark orange
chlorine
dark grey
7. List three properties of halogens.
1……………………………………………………………………………...
2……………………………………………………………………………...
3………………………………………………………………………………
3