1. Electronic configuration
Why am I so negative!!!!

2. Electronic configuration
ASPG students will differentiate between atomic mass and atomic number and explain the relationship of the atomic number, the number of protons and the element’s identity.
Learning objectives:
By the end of the lesson students should be able to:
State that electrons are found in shells around the nucleus
Understand that each shell can hold up to a certain number of electrons
Draw and write the electronic configuration of the first 20 elements

3. Electronic configuration
Recap:
What charge does an electron have?
Where are electrons found in an atom?

4. Representing an electron
OR X

5. Electron Arrangement
We can find out the number of electrons in each atom from the PERIODIC TABLE

6. Electron arrangement example
Sodium(Na) has 11 electrons
Draw and write the electronic configuration of sodium.

7. Electron arrangement examples

8. H
Use the following sheet to draw AND write the electron configuration for the first 20 elements. He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca

10. Plenary: Tweet it
Write a tweet about what you have learnt in today's lesson
(no more than 140 characters)