Download The Atom

The Atom
•Looking at the structure of the
atom
Starter Questions
1) Which of the following diagrams shows a
liquid
A
B
C
2) Complete this sentence
Gases have no fixed _______ and no fixed
______
(it can fill its container)
Long ago people believed
that everything was
made of Fire, Earth,
Wind and water in
different amounts.
A Greek philosopher,
Democritus (400 B.C.), argued
that everything was made of
different types of tiny “Lego
blocks” which couldn’t be
broken up
Atoms are the simplest and smallest piece
of a substance you can get. For instance
the smallest amount of gold you can get is
one atom of gold.
1 atom of gold would be worth
0.00000000000000000000000584 pence
• Electron – small
negatively charged
particle that orbits the
atom
•Proton – big positively
charged particle at the
nucleus (centre) of the
atom.
•Neutron – big neutral
particle also in the
nucleus
The charges on electrons
and protons are just like
magnets. Opposite charges
attract and things which
have the same charge repel
each other
1)
Name the particle which travels around
the edge of an atom
2)
Which of the particles has no charge?
3)
What keeps the outer particles from
flying off?