Search for notes by fellow students, in your own course and all over the country.

Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.

My Basket

You have nothing in your shopping cart yet.

Title: Atoms and Reactions - The Atom - Exam Question Answers
Description: Atoms and Reactions - The Atom - Exam Question Answers A Level Year 1 & AS Chemistry Exam Board: OCR A

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above


Atoms and Reactions

The Atom

Exam Question Answers
1) a) Similarity – They’ve all got the same number of protons/electrons [1 Mark]
...
You could also write 31H, but you don’t really need the atomic number
...
They have the same number of protons but different numbers of
neutrons
...



Title: Atoms and Reactions - The Atom - Exam Question Answers
Description: Atoms and Reactions - The Atom - Exam Question Answers A Level Year 1 & AS Chemistry Exam Board: OCR A