See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
12 questions from this quiz
2 neutrons and 2 protons
Around 5 cm
A single sheet of paper
Very strongly ionising
An electron ejected from the nucleus
A neutron changes into a proton + electron
About 15 cm
A few millimetres of aluminium
Quite strongly ionising
Electromagnetic radiation
Several meters
Thick lead sheets or meters of concrete
Select your subjects, and get access to A+ resources today.