This is an interesting point relating to the limitations of models, which we'd recommend exploring in full with the students:

Teaching Guidance 14-16

What halves during a time period of one half-life? This thinking that underpins this challenge relates closely to the...

Teaching Guidance 14-16

The gamma camera is an imaging technique used to carry out functional scans of the brain, thyroid, lungs, liver, gallbladder...

Classroom Activity 14-16