1. Explore inside atoms

Starter

Discuss with pupils how they understand matter. Guide them to differentiate between molecules and atoms. Make reference to chemistry and talk about elements and compounds.

Main Teaching

Use the handout to reinforce learning of the lesson. The information sheet on the first page can broaden the discussion of the study of science and the role of scientists in developing the periodic table from the 118 identified elements. Ask students to work through the questions and review answers in a plenary session.

Make a periodic table to refer to as a revision guide.  Ensure that you record the atomic number and the atomic mass on the table.

Practice calculating the number of neutrons each element contains by subtracting the atomic number from the atomic mass.

Think about how scientists proposed atomic and sub-atomic theories and hypotheses without visual evidence and proof.

Career Film: Emin Veron works as a fuel performance scientist for National Nuclear Laboratory.

Expert Film: This is Emin Veron who works as a fuel performance scientist for National Nuclear Laboratory. Emin provides an overview of the atom.

Mission Assignment

Answer questions and take part in activities during the presentation. 

Students make notes. 

Lead a discussion examining the structure of the atom in terms of negatively charged, positively charged and neutral particles and how they are interrelated within the structure. 

Students should consider the relative mass of the atomic particles.

Challenge Task:

Explain in detail the structure of an atom in terms of protons, neutrons and electrons when given mass number and proton number.

Research the keyword - Photon.

What does this word mean?

How does it relate to the lesson?

Why is this useful to understand?