This is perfect for teaching the basics of Atoms and Elements. the PowerPoint comes with animated movement so the class will never get bored. It is also easy to understand and good for students of all abilities. Key points are highlighted in different colours so it is easy to make notes. Also comes with definitions of important keywords.

2. Theancient Greeks believed that all matter was made upof tiny particles which they called
atoms.
FANCY DEFINITION:
An atom is the smallest part of any substance which canexist and still retain the properties of the
substance.
So lets take a look at an atom…

3. This is howan atom is often drawn…
Atoms have a small NUCLEUS in the centre
surrounded by even smaller SUBATOMIC
PARTICLES called ELECTRONS.
Electron.
Nucleus.

4. Inside the nucleus…
Thenucleus contains more subatomic
particles called PROTONS and NEUTRONS.
Protons are positively charged.
Neutrons are neutral. This means they do not
have a charge.
Proton.
Neutron.
Sothe overall nucleus has a positive charge becausethe
neutrons don’t have an impact onthe charge

5. Lets get back tothe Electrons… ElectronShell.
Theelectron orbits the nucleus.
Unlike the protons the electrons are negatively
charged.
Theelectrons are verysmall but they do covera lot of
space.
Theelectrons are arranged in shells around the
nucleus

6. THE NUMBER OF PROTONS EQUALS THE NUMBER OF ELECTRONS.
PROTON= +1
ELECTRON= -1
Protons and electrons have the same chargebut
their charges arethe opposite.
This means the atom is neutral because the
electrons and protons always cancel eachother out.
If you add orremovean electron from the atom then the atom becomes either negatively or
positively charged, it is then call an ion.

7. Elements…
Each elements consist of only one unique type of atom.
Different types of atoms can have different amounts of electrons, protons and neutrons.
However it’s the number of protons that decide what type of atom andelement it is.
Forexample, Helium has 2 protons.
Whereas Oxygen has 8.