1. S1 Chemistry Introduction to Chemistry
Elements
The image shows how people used to think of the elements.
S1 Chemistry
Introduction to Chemistry

2. Learning outcomes Success criteria
Understand what an element is.
You can describe what is meant by an element in terms of:
the type of atom from which they are made up
their ability to be broken down into simpler substances.
You can draw a diagram to illustrate the structure of an element.
Know examples of elements.
You can name five different elements.

3. Which is the odd one out?
The water is the odd one out. It is the only one which is not an element.

4. What are elements? Substances made up of only one type of atom.
How many elements do you think there are?
There are just over 100 elements that exist in the Universe
90 are natural
the rest have been made by scientists

14. Elements are made up of only one type of atom.
For most elements (but not all), these atoms are joined together as molecules.

15. Number of atoms in molecule
Magnetic marbles
Element
Number of atoms in molecule
Picture
Hydrogen
Oxygen
Sulphur
Phosphorus

16. Number of atoms in molecule
Magnetic marbles
Element
Number of atoms in molecule
Picture
Hydrogen 2
Oxygen
Sulphur 8
Phosphorus 4

17. Learning outcomes Success criteria
Understand what an element is.
You can describe what is meant by an element in terms of:
the type of atom from which they are made up
their ability to be broken down into simpler substances.
You can draw a diagram to illustrate the structure of an element.
Know examples of elements.
You can name five different elements.