See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
13 cards from this deck
About 2 million atoms
118
J.J. Thomson in 1897
Positive sphere with embedded electrons
Ernest Rutherford (1911)
Alpha particles
2000 atoms thick
Most alpha particles passed straight through
Empty space
Protons and neutrons
10−1510^{-15}10−15 metres
10−1010^{-10}10−10 metres
100,000 times smaller
Select your subjects, and get access to A+ resources today.