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The Periodic Table: Reaction Patterns

In this worksheet, students will learn how to predict chemical reactions by looking at the position of elements in the Periodic Table.

'The Periodic Table: Reaction Patterns' worksheet

Key stage:  KS 3

Curriculum topic:  Chemistry: The Periodic Table

Curriculum subtopic:  Mendeleev The Periodic Table

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

This is the Periodic Table of all the elements that have been discovered to date (click on the image to see a larger version).

 

 

The Periodic Table is separated in horizontal rows called periods and vertical columns called groups.

  • Group 1 (the first column) metals are the Alkali Metals. There are many similarities between them, but they are not identical. From top to bottom the alkali metals are: Lithium, Sodium, Potassium, Rubidium and Caesium. As we move down Group 1 the reactivity of the alkali metals increases. All alkali metals produce a metal hydroxide when they react with water. The general chemical equation is:

 

alkali metal + water  →  metal hydroxide + hydrogen 

 

  • Group 2 metals show a different trend than that of the alkali metals. Magnesium and Calcium burn vigorously in air producing different-colour bright flames. Metals also react with acids and give similar products; these reactions are dealt with in other worksheets.
  • Group 7 elements are called the Halogens (salt formers), when they react with metals.
  • Group 8 elements are called the Noble Gases. In the Periodic Table above the Noble Gases are shown as Group 18 and sometimes they are called Group 0 elements. The Noble Gases are generally very unreactive. 

 

The patterns in the Periodic Table exist because of the structure of the elements. Atoms of elements have a nucleus with protons and neutrons, and electrons orbit the nucleus in shells. Elements in the same groups have the same number of electrons in their outer shells. This determines their reaction patterns.

What table contains all the elements that are known today?

The Period Table

The Periodic Table

The Particle Table

What is the name of the rows of the Periodic Table?

What is the name of the columns of the Periodic Table?

What group do the Alkali Metals belong to?

1

2

3

What is the least reactive alkali metal?

Sodium reacts with water so hydrogen gas is produced as well as an alkali. What is the name of this alkali?

sodium hydroxyl

lithium hydoxide

sodium hydroxide

What group of the Periodic Table does magnesium belong to?

1

2

3

What is the name of the Group 7 elements?

haloys

halogenics

halogens

How are the Noble Gases similar to each other?

They are very reactive.

They are very unreactive.

They produce coloured flames when they burn.

What determines the reaction patterns of the elements?

the number of electrons in their outer shell

the number of protons in their outer shell

the number of protons in their nucleus

  • Question 1

What table contains all the elements that are known today?

CORRECT ANSWER
The Periodic Table
EDDIE SAYS
The Periodic Table contains all the elements that are known today.
  • Question 2

What is the name of the rows of the Periodic Table?

CORRECT ANSWER
periods
period
EDDIE SAYS
The rows of the Periodic Table are called periods.
  • Question 3

What is the name of the columns of the Periodic Table?

CORRECT ANSWER
groups
group
EDDIE SAYS
The columns of the Periodic Table are called groups.
  • Question 4

What group do the Alkali Metals belong to?

CORRECT ANSWER
1
EDDIE SAYS
The Alkali Metals belong to Group 1 of the Periodic Table.
  • Question 5

What is the least reactive alkali metal?

CORRECT ANSWER
lithium
EDDIE SAYS
The least reactive alkali metal is lithium.
  • Question 6

Sodium reacts with water so hydrogen gas is produced as well as an alkali. What is the name of this alkali?

CORRECT ANSWER
sodium hydroxide
EDDIE SAYS
sodium + water → sodium hydroxide + hydrogen
  • Question 7

What group of the Periodic Table does magnesium belong to?

CORRECT ANSWER
2
EDDIE SAYS
Magnesium belongs to Group 2 of the Periodic Table.
  • Question 8

What is the name of the Group 7 elements?

CORRECT ANSWER
halogens
EDDIE SAYS
Group 7 elements are called halogens.
  • Question 9

How are the Noble Gases similar to each other?

CORRECT ANSWER
They are very unreactive.
EDDIE SAYS
The Noble Gases are very unreactive.
  • Question 10

What determines the reaction patterns of the elements?

CORRECT ANSWER
the number of electrons in their outer shell
EDDIE SAYS
The number of electrons in their outer shell determines the reaction patterns of the elements.
---- OR ----

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