C2: The Atomic Structure

Here is a set of cards on the structure of an atom, from the C2 (chemistry) section of the course. This is mainly for students taking AQA Additional Science. I hope these revision cards will help you to revise! Please rate and comment on how they can be improved :) Also, I have a study group called AQA Additional Science where we discuss this topic and more. Feel free to become a member, the more the merrier!

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  • Created by: I P B
  • Created on: 18-12-09 10:39

Basic Atomic Structure

The nucleus = made of protons and neutrons

The electrons orbit around the nucleus

Proton = +1 charge

Neutron = 0 charge

Electron = -1 charge

The number of electrons is equal to the number of protons

Atoms have an overall charge of 0 - they are neutral

Electrons orbit the nucleus on energy levels (shells)

1 of 2

The Periodic Table

In the periodic table, the columns are called groups and the rows are called periods

the group number = the number of electrons on the outer most shell

the period number = the number of shells

2 of 2



thanks :)


thank you really helpfull i usally get these wrong


thanx some good information =D


That's awesome, thanks! :)


its gudd

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