Assignment Details

1 - Isotopes and Nuclear Instability HOMEWORK

Year 2025-26

10F - Physics - (w / th)

Date Due

Sept. 8, 2025, 8 a.m.

Additional Info
In OneNote;
In the following section;
Unit 7 > Lesson 01.

Please Complete;

1 - Isotopes and Nuclear Instability HOMEWORK

Notes;

  • You may assume all isotopes are neutral, so
    • # protons = # electrons = # Atomic (Proton) Number
  • Remember Mass Number = # Protons + # Neutrons

And for those interested in following up on Hetties query about empty space not being empty, here is the Youtube video I was talking about. A couple of things to note;
  • This topic goes way beyond even A-Level - as far as you are concerned, you must live life at GCSE level thinking it is empty for now!
  • https://youtu.be/J3xLuZNKhlY?si=pmG61SlAkfhRCyv6

  • If you haven't seen his videos before, he's been making them for years, so they have changed a lot over the years but cover all kinds of science, engineering, astronomy, maths topics, and most are 'followable' at a GCSE level (the link above is an unusually quite advanced one for his usual style of video)
  • If you like his style and want a bit of positive doomscrolling through his back catalogue, this is one of my favourites of his;
  • Beaker Ball Balance Problem
  • (The 'explained' solution video is out there somewhere to find if you want to know the answer!)