AQA Trilogy GCSE Science Science

4. Relative atomic number and mass number

Mission Objectives

Calculate the numbers of protons, neutrons and electrons in an atom

Relate the size and scale of atoms to objects in the physical world

Describe the structure of atoms using the nuclear model

Sign up to view the full lesson

Rocket Words Quiz

See if you know all the meanings of the rocket words

Assessment Quiz

Test your knowledge of this lesson

Word Search Game

Find all the rocket words in the grid

Lesson Resources

Lesson Plan

View and print the lesson plan

View

Downloads

Save files related to this lesson

Keywords

Words and meanings to learn

radius

distance from the centre of a sphere to its outer edge

relative

refers to something considered in relation or in proportion to something else

mass

the measure of the amount of matter in an object

neutral charge

an object or particle that has no overall electric charge

subatomic

particles that are smaller than an atom

Sponsored by

Rolls Royce SMR

This lesson has been written by

Samantha Batch

Samantha is a dedicated and accomplished science educator with over 15 years of leadership experience in the field, coupled with a strong background in scientific analysis. She has a proven track record of strategically managing educational departments, driving operational efficiencies, and nurturing collaborative relationships with stakeholders. 

Samantha previously served as the Head of Chemistry and Sixth Form Tutor, Ilkley Grammar School, Ilkley with extensive Key Stage 4 and 5 teaching experience and leadership. In addition to her teaching and leadership roles, she is also an examiner for AQA, providing her with valuable insight into assessment standards and exam specifications.

In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket, where she's enthusiastically honing her skills both on and off the pitch!

Required Resources

Atomic and mass number - Handout

Warning: You are now leaving Developing Experts.

These links are being provided as a convenience and for informational purposes only; they do not constitute an endorsement or an approval from Developing Experts of any of the products, services or opinions of the corporation or organisation or individual.

Developing Experts bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

You will be redirected to:

Expert film

Sign up to view this full lesson

This lesson is only available to registered users, you can sign up for an account to get full access to this lesson.

Simply click the "Start your free trial" button below to get started.

Mission assignment film

Sign up to view this full lesson

This lesson is only available to registered users, you can sign up for an account to get full access to this lesson.

Simply click the "Start your free trial" button below to get started.